Professor Wolfgang Gstöttner is a specialist in ear, nose and throat (ENT) diseases. He is head of the University Hospital ENT Clinic in Vienna and has extensive experience in head and neck surgery. He is a professor, board member and president of various related organizations. He has performed various ENT surgeries and was the first to implant an active middle ear implant and auditory brain stem implant in Austria.
Read moreProfessor Wolfgang Gstöttner is a specialist in ear, nose and throat (ENT) diseases. He is head of the University Hospital ENT Clinic in Vienna and has extensive experience in head and neck surgery. He is a professor, board member and president of various related organizations. He has performed various ENT surgeries and was the first to implant an active middle ear implant and auditory brain stem implant in Austria.
Otorhinolaryngologist, Clinical Instructor and Clinical Assistant Professor at Sinchon Severance with Yonsei University Medical School (Shinchon) qualifications, who has received multiple awards for excellence in the field, including the Yonsei University Otorhinolaryngology Award and Best Academic Presentation Award from Korean Otorhinolaryngology nose dissection and surgery. Full member of the Korean Society of Non-Science, Korean Otorhinolaryngology Association, and Korean Society for Facial Plastic Reconstruction.
Read moreOtorhinolaryngologist, Clinical Instructor and Clinical Assistant Professor at Sinchon Severance with Yonsei University Medical School (Shinchon) qualifications, who has received multiple awards for excellence in the field, including the Yonsei University Otorhinolaryngology Award and Best Academic Presentation Award from Korean Otorhinolaryngology nose dissection and surgery. Full member of the Korean Society of Non-Science, Korean Otorhinolaryngology Association, and Korean Society for Facial Plastic Reconstruction.
Professor Wolfgang Gstöttner is an ear, nose and throat specialist and the head of the University Hospital for ENT Diseases at the Medical University of Vienna. He has extensive experience in head and neck surgery, including the creation of a laser partial resection of the larynx, implantation of active middle ear and auditory brain stem implants, and has held various positions of leadership in medical organizations.
Read moreProfessor Wolfgang Gstöttner is an ear, nose and throat specialist and the head of the University Hospital for ENT Diseases at the Medical University of Vienna. He has extensive experience in head and neck surgery, including the creation of a laser partial resection of the larynx, implantation of active middle ear and auditory brain stem implants, and has held various positions of leadership in medical organizations.
Dr. Schlemmer is a qualified Otorhinolaryngologist with 14 years of experience in the field. He is an honorary lecturer in the Department of ENT at UKZN and has a special interest in Otology and Neurotology, as well as Lateral Skull Base and Head and Neck surgery. He has expertise in various ENT procedures such as stapedotomy, endoscopic sinus surgery, and cochlear implantation.
Read moreDr. Schlemmer is a qualified Otorhinolaryngologist with 14 years of experience in the field. He is an honorary lecturer in the Department of ENT at UKZN and has a special interest in Otology and Neurotology, as well as Lateral Skull Base and Head and Neck surgery. He has expertise in various ENT procedures such as stapedotomy, endoscopic sinus surgery, and cochlear implantation.
. SPECIAL EXPERIENCES IN EAR NOSE THROAT AREA:
- 3 months at the University of Pittsburgh Sound Center as an Observer (September-December/2004)
-Ear and Skull Base Surgery at Gruppo Otologico/Piacenza-Italy as Observer- 3 weeks (May 2013)
1. Laringofaringeal Reflünün Değerlendirilmesinde 24 Saatlik Çift Problu pH Monitorizasyonunun Etkinliği, AİBÜ Bilimsel Araştırma Projeleri, No: 2001.07.02.96, Proje Yöneticisi, 2001.
2. Gebeliğin İşitsel Beyin Sapı Cevaplarına Etkisi, AİBÜ Bilimsel Araştırma Projeleri, No: 2003.07.02.191, Proje Yardımcı Personeli, 2003
3. Tiroidektomi Operasyonları Sonrası Ses Kalitesinin Değerlendirilmesi, Düzce Üniv. Bilimsel Araştırma Projeleri, No: 2005.07.02.235, Proje Yöneticisi, 2005.
4. Tiroidektomi Operasyonları Sonrası Ses Kalitesinin Değerlendirilmesi, İstanbul Üniversitesi, Bilimsel Araştırma Projeleri, No:3507, Proje Yardımcı Personeli, 2009
5. Koklear İmplantasyon Yapılan Hastalarda İşitme Ve Denge Fonksiyonlarının Değerlendirilmesi, İstanbul Üniversitesi, Bilimsel Araştırma Projeleri, No:3971, Proje Yardımcı Personeli, 2009
MEMBERSHIPS:
1. Turkish Association of Otorhinolaryngology- Head and Neck Surgery
2. European Laryngological Society (European Laryngologycal Society)
3. European Academy of Otology-Neurootology (European Academy of Otology & Neuro-Otology)
4. Facial Plastic Surgery Association
PAPERS PRESENT AT NATIONAL SCIENTIFIC MEETINGS AND PRINTED IN PROCEEDING BOOKS:
1. Öztürk, Ö., E. Karaman, H. Şimşir, N. Adatepe, A. Kaytaz, N. Korkut, M. Kızıltan, and Ö. Enver, “Evaluation of Facial Nerve Functions After Cochlear Implantation”, 31st Turkish National Congress of Otorhinolaryngology and Head and Neck Surgery, Antalya, 2009.
2. Karaman, E., M. Ibrahimov, M. Mamanov, G. Güngör, Ö. Öztürk, M. Ada and Ö. Enver, “The Effect of Anteroposterior Plica Suturation on Morbidity After Tonsillectomy in Children”, 31st Turkish National Congress of Otorhinolaryngology and Head and Neck Surgery, Antalya, 2009.
3. Yaman, H., S. Yılmaz, N. Alkan, B. Subaşı, E. Güçlü and Ö. Öztürk, “Shepard Grommet Ventilation Tube Complications in Children with Otitis Media with Effusion”, 31st Turkish National Congress of Otorhinolaryngology and Head and Neck Surgery, Antalya, 2009.
4. Yaman, H., S. Yılmaz, E. Güçlü, Ö. Öztürk, B. Subaşı and N. Alkan, “Grommet Ventilation Tubes in the Middle Ear”, 31st Turkish National Congress of Otorhinolaryngology and Head and Neck Surgery, Antalya, 2009.
5. Karaman, E., Ö. Öztürk, G. Saritzali, A. Özdilek, E. Kılıç and Ö. Enver, “Case report: Basal Cell Adenoma in the Parotid Gland”, 31st Turkish National Congress of Otorhinolaryngology and Head and Neck Surgery, Antalya, 2009.
6. Yilmaz, S., S. Y. Güler, H. Yaman, E. Güçlü and Ö. Öztürk, “Stridor in Newborn Due to Congenital Laryngocele and Bifid Epiglottis: Case Report and Literature Review”, 31st Turkish National Congress of Otorhinolaryngology and Head and Neck Surgery, Antalya, 2009.
7. Akbay, K.B., S. Yıldızbaş, E. Güçlü, S. Yılmaz, A. İskender, Ö. Öztürk, “Effectiveness of Topical Tramadol Use in the Control of Postoperative Morbidity in Tonsillectomy Children”, 30th Turkish National Congress of Otorhinolaryngology and Head and Neck Surgery, Antalya, 2008.
8. Yılmaz, S., E. Karalı, A. Tokmak, E. Güçlü, A. Koçer and Ö. Öztürk, “Evaluation of Hearing in Parkinson's Patients”, 30th Turkish National Congress of Otorhinolaryngology and Head and Neck Surgery, Antalya, 2008.
9. Öztürk, Ö., E. Karalı, E. Gültekin, C. Şenyuva, S. Yılmaz, “Esthesioneuroblastoma: Case Report”, 30th Turkish National Congress of Otorhinolaryngology and Head and Neck Surgery, Antalya, 2008
10. Oghan, F., O. Öztürk, U. Harputluoğlu, E. Güçlü and E. Egeli, “Evaluation of Laryngopharyngeal Reflux and Upper Airway Resistance Secondary to Reflux in Etiology of Hoarseness”, 28. Turkish National Congress of Otorhinolaryngology and Head and Neck Surgery, Antalya, 2005.
11. Öztürk, Ö., E. Güçlü, U. Harputluoğlu, F. Oğhan, Ş.B. Belli, A. Mayda and E. Egeli, “Comparison of the Prevalence of Ear, Nose and Throat Diseases in Hearing Impaired Children with Non-Hearing Impaired Children”, 28. Turkish National Congress of Otorhinolaryngology and Head and Neck Surgery, Antalya, 2005.
12. Güçlü, E., A. Tokmak, F. Oğhan, Ö. Öztürk and E. Egeli, “Hemacroglossia Associated with Isolated Plexiform Neurofibroma: Case Report”, 28. Turkish National Congress of Otorhinolaryngology and Head and Neck Surgery, Antalya, 2005.
13. Egeli, E., U. Harputluoğlu, Ö. Öztürk, F. Oğhan and S. Koçak, “Can 24-Hour IV Fluid Treatment After Adenotonsillectomy in Pediatric Patients Reduce Morbidity?”, Uludağ 2004 ENT Days, Uludağ, 2004.
14. Öztürk, Ö., S.B. Belli, M. Alper, E. Egeli, C. Kaleli, “Pseudosarcoma of the Larynx: Case Report”, 27th Turkish National Congress of Otorhinolaryngology and Head and Neck Surgery, Antalya, 2003.
15. Öztürk, Ö., H. Cansız, M.Z. Güzel, B. Karakullukçu, H. Özek, “Local Control Provided by Removal of Limited Tissue in Primary Oropharyngeal Malignant Melanomas”, 27th Turkish National Congress of Otorhinolaryngology and Head and Neck Surgery, Antalya, 2003.
16. Bozan, S., Ö. Öztürk, S. Yüksel, E. Karaman, S. Yılmaz, Ö. Enver, “Our Long-Term Clinical Results in Stapes Surgery”, 27th Turkish National Congress of Otorhinolaryngology and Head and Neck Surgery, Antalya, 2003.
17. Öztürk, Ö., U. Harputluoğlu, E. Egeli, F. Oğhan, A. Mayda, “Evaluation of Otorhinolaryngology Screening Results in Primary School Children According to Socioeconomic Level”, 27th Turkish National Congress of Otorhinolaryngology and Head and Neck Surgery, Antalya, 2003.
18. Öz, F., N. Kalekoğlu, B. Karakullukçu, Ö. Öztürk, B. Öz, “Lipoid Proteinosis: Case Report”, 26th Turkish Congress of Otorhinolaryngology and Head and Neck Surgery, Antalya, 2001.
19. Aydın S., Ö. Öztürk, E. İnci, N. Kalekoğlu, H. Cansız and N. Şekercioğlu, “Our Surgical Approach in Anterior Skull Base Tumors: 110 cases”, 26th Turkish Congress of Otorhinolaryngology and Head and Neck Surgery, Antalya, 2001.
20. Öztürk, Ö., F. Öz, M. Ada B. Karakullukçu and M. Toprak, , “The Role of Laryngopharyngeal Reflux in the Etiology of Hoarseness”, Records of the 26th Turkish Congress of Otorhinolaryngology and Head and Neck Surgery (CD Recorded), Antalya, 2001 .
21. Şekercioğlu, N., H. Cansız, M. Güneş, A. Resuli, Ö. Öztürk, “Reconstruction in advanced laryngotracheal stenosis: results in 40 cases”, Proceedings of the 1st Turkish-Italian Otolaryngology Congress, 210-221, Antalya, 1997.
22. Şekercioğlu, N., H. Cansız, M. Güneş, A. Resuli, Ö. Öztürk, “Reconstructed partial laryngeal
Read more. SPECIAL EXPERIENCES IN EAR NOSE THROAT AREA:
- 3 months at the University of Pittsburgh Sound Center as an Observer (September-December/2004)
-Ear and Skull Base Surgery at Gruppo Otologico/Piacenza-Italy as Observer- 3 weeks (May 2013)
1. Laringofaringeal Reflünün Değerlendirilmesinde 24 Saatlik Çift Problu pH Monitorizasyonunun Etkinliği, AİBÜ Bilimsel Araştırma Projeleri, No: 2001.07.02.96, Proje Yöneticisi, 2001.
2. Gebeliğin İşitsel Beyin Sapı Cevaplarına Etkisi, AİBÜ Bilimsel Araştırma Projeleri, No: 2003.07.02.191, Proje Yardımcı Personeli, 2003
3. Tiroidektomi Operasyonları Sonrası Ses Kalitesinin Değerlendirilmesi, Düzce Üniv. Bilimsel Araştırma Projeleri, No: 2005.07.02.235, Proje Yöneticisi, 2005.
4. Tiroidektomi Operasyonları Sonrası Ses Kalitesinin Değerlendirilmesi, İstanbul Üniversitesi, Bilimsel Araştırma Projeleri, No:3507, Proje Yardımcı Personeli, 2009
5. Koklear İmplantasyon Yapılan Hastalarda İşitme Ve Denge Fonksiyonlarının Değerlendirilmesi, İstanbul Üniversitesi, Bilimsel Araştırma Projeleri, No:3971, Proje Yardımcı Personeli, 2009
MEMBERSHIPS:
1. Turkish Association of Otorhinolaryngology- Head and Neck Surgery
2. European Laryngological Society (European Laryngologycal Society)
3. European Academy of Otology-Neurootology (European Academy of Otology & Neuro-Otology)
4. Facial Plastic Surgery Association
PAPERS PRESENT AT NATIONAL SCIENTIFIC MEETINGS AND PRINTED IN PROCEEDING BOOKS:
1. Öztürk, Ö., E. Karaman, H. Şimşir, N. Adatepe, A. Kaytaz, N. Korkut, M. Kızıltan, and Ö. Enver, “Evaluation of Facial Nerve Functions After Cochlear Implantation”, 31st Turkish National Congress of Otorhinolaryngology and Head and Neck Surgery, Antalya, 2009.
2. Karaman, E., M. Ibrahimov, M. Mamanov, G. Güngör, Ö. Öztürk, M. Ada and Ö. Enver, “The Effect of Anteroposterior Plica Suturation on Morbidity After Tonsillectomy in Children”, 31st Turkish National Congress of Otorhinolaryngology and Head and Neck Surgery, Antalya, 2009.
3. Yaman, H., S. Yılmaz, N. Alkan, B. Subaşı, E. Güçlü and Ö. Öztürk, “Shepard Grommet Ventilation Tube Complications in Children with Otitis Media with Effusion”, 31st Turkish National Congress of Otorhinolaryngology and Head and Neck Surgery, Antalya, 2009.
4. Yaman, H., S. Yılmaz, E. Güçlü, Ö. Öztürk, B. Subaşı and N. Alkan, “Grommet Ventilation Tubes in the Middle Ear”, 31st Turkish National Congress of Otorhinolaryngology and Head and Neck Surgery, Antalya, 2009.
5. Karaman, E., Ö. Öztürk, G. Saritzali, A. Özdilek, E. Kılıç and Ö. Enver, “Case report: Basal Cell Adenoma in the Parotid Gland”, 31st Turkish National Congress of Otorhinolaryngology and Head and Neck Surgery, Antalya, 2009.
6. Yilmaz, S., S. Y. Güler, H. Yaman, E. Güçlü and Ö. Öztürk, “Stridor in Newborn Due to Congenital Laryngocele and Bifid Epiglottis: Case Report and Literature Review”, 31st Turkish National Congress of Otorhinolaryngology and Head and Neck Surgery, Antalya, 2009.
7. Akbay, K.B., S. Yıldızbaş, E. Güçlü, S. Yılmaz, A. İskender, Ö. Öztürk, “Effectiveness of Topical Tramadol Use in the Control of Postoperative Morbidity in Tonsillectomy Children”, 30th Turkish National Congress of Otorhinolaryngology and Head and Neck Surgery, Antalya, 2008.
8. Yılmaz, S., E. Karalı, A. Tokmak, E. Güçlü, A. Koçer and Ö. Öztürk, “Evaluation of Hearing in Parkinson's Patients”, 30th Turkish National Congress of Otorhinolaryngology and Head and Neck Surgery, Antalya, 2008.
9. Öztürk, Ö., E. Karalı, E. Gültekin, C. Şenyuva, S. Yılmaz, “Esthesioneuroblastoma: Case Report”, 30th Turkish National Congress of Otorhinolaryngology and Head and Neck Surgery, Antalya, 2008
10. Oghan, F., O. Öztürk, U. Harputluoğlu, E. Güçlü and E. Egeli, “Evaluation of Laryngopharyngeal Reflux and Upper Airway Resistance Secondary to Reflux in Etiology of Hoarseness”, 28. Turkish National Congress of Otorhinolaryngology and Head and Neck Surgery, Antalya, 2005.
11. Öztürk, Ö., E. Güçlü, U. Harputluoğlu, F. Oğhan, Ş.B. Belli, A. Mayda and E. Egeli, “Comparison of the Prevalence of Ear, Nose and Throat Diseases in Hearing Impaired Children with Non-Hearing Impaired Children”, 28. Turkish National Congress of Otorhinolaryngology and Head and Neck Surgery, Antalya, 2005.
12. Güçlü, E., A. Tokmak, F. Oğhan, Ö. Öztürk and E. Egeli, “Hemacroglossia Associated with Isolated Plexiform Neurofibroma: Case Report”, 28. Turkish National Congress of Otorhinolaryngology and Head and Neck Surgery, Antalya, 2005.
13. Egeli, E., U. Harputluoğlu, Ö. Öztürk, F. Oğhan and S. Koçak, “Can 24-Hour IV Fluid Treatment After Adenotonsillectomy in Pediatric Patients Reduce Morbidity?”, Uludağ 2004 ENT Days, Uludağ, 2004.
14. Öztürk, Ö., S.B. Belli, M. Alper, E. Egeli, C. Kaleli, “Pseudosarcoma of the Larynx: Case Report”, 27th Turkish National Congress of Otorhinolaryngology and Head and Neck Surgery, Antalya, 2003.
15. Öztürk, Ö., H. Cansız, M.Z. Güzel, B. Karakullukçu, H. Özek, “Local Control Provided by Removal of Limited Tissue in Primary Oropharyngeal Malignant Melanomas”, 27th Turkish National Congress of Otorhinolaryngology and Head and Neck Surgery, Antalya, 2003.
16. Bozan, S., Ö. Öztürk, S. Yüksel, E. Karaman, S. Yılmaz, Ö. Enver, “Our Long-Term Clinical Results in Stapes Surgery”, 27th Turkish National Congress of Otorhinolaryngology and Head and Neck Surgery, Antalya, 2003.
17. Öztürk, Ö., U. Harputluoğlu, E. Egeli, F. Oğhan, A. Mayda, “Evaluation of Otorhinolaryngology Screening Results in Primary School Children According to Socioeconomic Level”, 27th Turkish National Congress of Otorhinolaryngology and Head and Neck Surgery, Antalya, 2003.
18. Öz, F., N. Kalekoğlu, B. Karakullukçu, Ö. Öztürk, B. Öz, “Lipoid Proteinosis: Case Report”, 26th Turkish Congress of Otorhinolaryngology and Head and Neck Surgery, Antalya, 2001.
19. Aydın S., Ö. Öztürk, E. İnci, N. Kalekoğlu, H. Cansız and N. Şekercioğlu, “Our Surgical Approach in Anterior Skull Base Tumors: 110 cases”, 26th Turkish Congress of Otorhinolaryngology and Head and Neck Surgery, Antalya, 2001.
20. Öztürk, Ö., F. Öz, M. Ada B. Karakullukçu and M. Toprak, , “The Role of Laryngopharyngeal Reflux in the Etiology of Hoarseness”, Records of the 26th Turkish Congress of Otorhinolaryngology and Head and Neck Surgery (CD Recorded), Antalya, 2001 .
21. Şekercioğlu, N., H. Cansız, M. Güneş, A. Resuli, Ö. Öztürk, “Reconstruction in advanced laryngotracheal stenosis: results in 40 cases”, Proceedings of the 1st Turkish-Italian Otolaryngology Congress, 210-221, Antalya, 1997.
22. Şekercioğlu, N., H. Cansız, M. Güneş, A. Resuli, Ö. Öztürk, “Reconstructed partial laryngeal
Education and Expertise
2003 - At Istanbul University Istanbul Faculty of Medicine
2003 - 2009 - Şişli Etfal Training and Research Hospital
Experience
2009 - 2011 - Bayburt State Hospital
2013 - Istanbul Private Safa Hospital
Professional Memberships
Turkish Ear Nose Throat Foundation
Turkish Medical Association
Facial Plastic Surgery Association
Turkish ENT and Surgery Association
Read moreEducation and Expertise
2003 - At Istanbul University Istanbul Faculty of Medicine
2003 - 2009 - Şişli Etfal Training and Research Hospital
Experience
2009 - 2011 - Bayburt State Hospital
2013 - Istanbul Private Safa Hospital
Professional Memberships
Turkish Ear Nose Throat Foundation
Turkish Medical Association
Facial Plastic Surgery Association
Turkish ENT and Surgery Association
He graduated from Istanbul Pertevniyal High School in 1997 and successfully graduated from Istanbul University Istanbul Faculty of Medicine in 2003 and received the title of Doctor of Medicine. In the same year, he started his assistant training in Istanbul Şişli Etfal Training and Research Hospital, Department of Otorhinolaryngology, and received the title of specialist doctor in 2009. He did his compulsory service in Bayburt state hospital between 2009-2011 and his military service in Balıkesir Military Hospital between 2011-2012. He worked at Istanbul Private Safa Hospital between 2012-2018 . received the title of Associate Professor during his duty. Having a special interest in rhinoplasty,
Education and Expertise
2003 - At Istanbul University Istanbul Faculty of Medicine
2003 - 2009 - Şişli Etfal Training and Research Hospital
Experience
2009 - 2011 - Bayburt State Hospital
2013 - Istanbul Private Safa Hospital
Professional Memberships
Turkish Ear Nose Throat Foundation
Turkish Medical Association
Facial Plastic Surgery Association
Turkish ENT and Surgery Association
Read more
He graduated from Istanbul Pertevniyal High School in 1997 and successfully graduated from Istanbul University Istanbul Faculty of Medicine in 2003 and received the title of Doctor of Medicine. In the same year, he started his assistant training in Istanbul Şişli Etfal Training and Research Hospital, Department of Otorhinolaryngology, and received the title of specialist doctor in 2009. He did his compulsory service in Bayburt state hospital between 2009-2011 and his military service in Balıkesir Military Hospital between 2011-2012. He worked at Istanbul Private Safa Hospital between 2012-2018 . received the title of Associate Professor during his duty. Having a special interest in rhinoplasty,
Education and Expertise
2003 - At Istanbul University Istanbul Faculty of Medicine
2003 - 2009 - Şişli Etfal Training and Research Hospital
Experience
2009 - 2011 - Bayburt State Hospital
2013 - Istanbul Private Safa Hospital
Professional Memberships
Turkish Ear Nose Throat Foundation
Turkish Medical Association
Facial Plastic Surgery Association
Turkish ENT and Surgery Association
Dr. Shahriyar is a European Board-Certified Specialist Otorhinolaryngologist and Head and Neck Surgeon with over 14 years of experience in ENT and Head and Neck Surgery. He also possesses a Master’s Degree in Otorhinolaryngology and Head and Neck Surgery from India and MRCS in ENT from Royal College of Surgeons Edinburgh, UK. Dr. Shahriyar, is a seasoned ENT surgeon with vast ENT Experience. Moreover, his international engagements include working in King Fahad Medical City, Riyadh, Saudi Arabia, one of the largest tertiary care ENT and Head and Neck Oncology Institute adding precious experience to his expertise in dealing with comprehensive ENT & Head and Neck Disorders. In India, He has worked with Apollo Hospitals Group one of the biggest and the oldest Healthcare provider in India. Dr Shahriyar has a zeal to stay updated in the fast changing medical field by meticulously continuing medical education, participating frequently in meetings and national and International conferences.
EXPERTISE:
CERTIFICATES:
Dr. Shahriyar is a European Board-Certified Specialist Otorhinolaryngologist and Head and Neck Surgeon with over 14 years of experience in ENT and Head and Neck Surgery. He also possesses a Master’s Degree in Otorhinolaryngology and Head and Neck Surgery from India and MRCS in ENT from Royal College of Surgeons Edinburgh, UK. Dr. Shahriyar, is a seasoned ENT surgeon with vast ENT Experience. Moreover, his international engagements include working in King Fahad Medical City, Riyadh, Saudi Arabia, one of the largest tertiary care ENT and Head and Neck Oncology Institute adding precious experience to his expertise in dealing with comprehensive ENT & Head and Neck Disorders. In India, He has worked with Apollo Hospitals Group one of the biggest and the oldest Healthcare provider in India. Dr Shahriyar has a zeal to stay updated in the fast changing medical field by meticulously continuing medical education, participating frequently in meetings and national and International conferences.
EXPERTISE:
CERTIFICATES: