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Dr. Irfan Cicin is a Professor of Medical Oncology at the Trakya University Faculty of Medicine (2015–present). He has over 20 years of medical oncology experience and has held academic roles since 2010.

Education: MD, Istanbul University – Cerrahpaşa (1991–1997). Residency in Internal Medicine, Trakya University (1997–2002). Fellowship in Medical Oncology, Trakya University (2002–2004).

Practice: Medical Oncologist, Trakya University (2005–2008). Medical Oncologist, Elazığ Training and Research Hospital (2008–2010). Associate Professor of Medical Oncology, Trakya University (2010–2015). He previously served as a physician in the Turkish Air Force at Etimesgut Military Hospital (2004–2005).

Specialization

• spinal deformities in adults and children;
• robotic spine surgery;
• intervertebral hernias;
• spinal tumors;
• spinal column injuries.

Education and advanced training courses

• 1999 - 2002 – received medical education at the Hebrew University.
• 2002 - 2005 – completed Master's degree.
• 2005 – completed courses in cardiology and trauma resuscitation.
• 2006 - 2012 – completed internship and residency in orthopedics at Hadassah University Hospital.
• 2010 – completed a basic course in orthopedic traumatology.
• 2014 – completed a course in pediatric vertebrology at the Orthopedic Association.
• 2014 – completed a course for department heads at the Association of Orthopedists.

Professional biography

After completing his internship, he worked as a physician in a refugee camp (Kampala, Uganda) under the auspices of the Global Youth Movement for Africa (2007). He returned to Hadassah, where he worked in the orthopedic department during his residency.

From 2013 to 2014, he was an attending spine surgeon at the Bronx Hospital (New York). After returning to Israel, he currently works as a spine surgeon in the orthopedic department.

He actively uses robotic equipment and, together with the clinic’s team of doctors, has performed many complex operations to restore the structure of the spinal column.

Scientific activity

Participated in various clinical studies in California, Switzerland, and the USA. Teaches at the University of Jerusalem and Cornell Weill University, is a member of the Association of Orthopedists and the Congress of Vertebrologists (Milan). Has repeatedly received grants for research in the field of vertebrology. In 2017, he received an associate professor degree. Has a number of articles published in scientific journals.

Prof. Ramazan Gökhan ATIŞ, M.D.

Languages: English

Urology

Areas of Expertise and Interest

• Paediatric Urology
• Robotic Surgery
• Endourology
• Genitourinary Reconstructive Surgery
• Urological Oncology
• Urological Neurology
   

Education

• Cağaloğlu Anatolian High School, Istanbul – Graduated in 1996
• Istanbul University, Istanbul Faculty of Medicine (Çapa) – M.D., 2002
• Urology Residency, Istanbul Şişli Etfal Training and Research Hospital – 2002–2008
• Laparoscopy and Robotic Urology Training, Heidelberg University, Heilbronn Clinic – 2011

Career

• Urology Specialist, Istanbul Göztepe Training and Research Hospital – 2009–2014
• Associate Professor Title Achieved – September 2014
• Executive Board Member, Endourology Society – Since 2017
• Member, European Association of Urology – Young Academic Urologists (EAU-YAU), Endourology Working Group – 2018–2020
• Professor of Urology, Istanbul Medeniyet University – Appointed in January 2021
• Urologist, Şişli Memorial Hospital – Since August 1, 2022
   

Born in 1978 in Istanbul, Prof. Dr. Ramazan Gökhan ATIŞ completed his medical degree at Istanbul University’s Faculty of Medicine in 2002. He pursued his urology specialization at Şişli Etfal Training and Research Hospital and became a certified urologist in February 2008. Following his military service at Edremit Military Hospital, he began working at Göztepe Training and Research Hospital in 2009.

In 2011, he received training in laparoscopic and robotic urology at Heidelberg University’s Heilbronn Clinic. Between 2009 and 2014, he conducted numerous scientific studies, especially in the field of endourology, earning the title of Associate Professor in 2014.

Since 2017, he has served on the board of the Endourology Society. In 2018, he was selected to the European Association of Urology’s Young Academic Urologists (EAU-YAU) Endourology Working Group, actively serving for two years. In January 2021, he was appointed as a Professor at Istanbul Medeniyet University. Since August 1, 2022, he has continued his clinical practice, initially at Şişli Memorial Hospital and currently at Medipol Acıbadem District Hospital.

Dr. César Canales has led General and Digestive Surgery and the Laparoscopic and Robotic Surgery Unit at Hospital Ruber Internacional (Madrid) since 2015. He is a General and Digestive Surgeon with over 30 years of experience. He specializes in laparoscopic and Da Vinci robotic surgery for complex abdominal, oncologic, and abdominal wall cases.

He holds a PhD (cum laude, UAM) and an MD (with honors, UCM). He completed his specialist training at Hospital General Universitario Gregorio Marañón. He is also certified by the Military Medical Corps. He has authored over 70 publications and 12 book chapters, including the Manual of Surgery (McGraw-Hill). He has served as faculty in more than 16 courses. Awards include Forbes Top 100 Doctors (2024), Top 5 General and Digestive Surgeons in Spain (2021–2024), La Razón Doctor of the Year (2024), and El Confidencial Best Doctors in Spain (2025).

Dr. Sebastian Schoppmann is an expert in general and visceral surgery. He specializes in upper gastrointestinal procedures. He leads the Gastroesophageal Tumor Unit at the Comprehensive Cancer Center Vienna. He also heads the gastric and esophageal surgery team at the Medical University of Vienna.

Dr. Schoppmann has published over 240 scientific articles. He is the General Secretary of the Austrian Society of Surgical Oncology. He has served as editor or associate editor for several respected medical journals. He is known for his achievements in surgical oncology and cancer research.

Dr. Klaus Kaczirek is a senior physician at the Medical University of Vienna. He specializes in hepatobiliopancreatic, oncological visceral, and endocrine surgery. He holds a PhD in medicine and an advanced qualification in visceral surgery. Dr. Kaczirek has over 20 years of experience working in high-volume surgical centers.

He is an expert in complex surgeries involving the liver, pancreas, biliary tract, gastrointestinal system, and endocrine tumors. Since 2008, he has led the liver, gallbladder, and pancreas working group of the Austrian Society of Surgical Oncology. Dr. Kaczirek is a member of several respected medical societies, including the European Society of Endocrine Surgeons. He also reviews articles for leading international medical journals.

Prof. Dr. Ozan Beytemur is an experienced orthopedic surgeon with over 20 years in the field. He is a Professor at Health Sciences University, Istanbul Bağcılar Health Practice and Research Center. He is known for his research in bone healing, osteoporosis prediction, and orthopedic biomechanics. He has published many articles in leading international journals.

Dr. Beytemur has served as Chief Physician and has led improvements in orthopedic care and education. He holds the TOTBİD-TOTEK Board Certification. He has also completed international courses, including the AO Pediatric Trauma Course. He specializes in complex surgeries, such as bone tumor treatment and advanced fracture management. He is active in Turkish orthopedic associations and has supervised important theses, helping to advance orthopedic science and education.

Dr Ewa Choromańska is a vascular surgeon. She graduated from the Medical University of Białystok. She completed specialist training in vascular surgery at the Department of General, Vascular and Oncological Surgery at Międzyleski Specialist Hospital. She continues to work there.

At Sienna Clinic, she performs venous surgery and laser therapy. She also conducts Doppler ultrasound examinations of veins and arteries.

She regularly develops her professional skills. She takes part in training courses, conferences, and congresses.

Dr. Arkadiusz Janion graduated from the Medical Academy in Lublin, now the Medical University of Lublin. He completed specialist training in general and vascular surgery at the Department of General, Vascular and Oncological Surgery at Międzyleski Specialist Hospital. He is the Deputy Head of that department.

He performs general and vascular procedures. These include hernia repair, hemorrhoid treatment, and varicose vein surgery. He also performs Doppler ultrasound of the peripheral and carotid vessels.

He keeps his skills up to date. He takes part in national and international courses and medical symposia.

Dr. Ehsan Sotoudeh, MD, is a general surgeon, laparoscopic specialist, and aesthetic specialist. He has over 24 years of clinical experience with a focus on precision care and strong patient outcomes.

He is licensed in regenerative medicine, including stem cell therapy and exosome-based treatments. All services follow a regulated, physician-led model.

His care uses evidence-based protocols, advanced diagnostics, and individualized plans. He combines surgical, regenerative, and aesthetic methods to deliver safe, measurable results.

Dr. César Lévano Linares is a specialist in general and digestive surgery. He works at Rey Juan Carlos University Hospital and Fundación Jiménez Díaz University Hospital. He is recognized for his work in laparoscopic colorectal surgery.

He holds a PhD in Medicine and Surgery from the Autonomous University of Madrid. He completed a master’s in colorectal and pelvic floor surgery at the University of Zaragoza. He also holds a diploma in laparoscopic surgery from Louis Pasteur University in Strasbourg. He has European accreditation in laparoscopic surgery (EACCME).

His research covers bilateral retroperitoneal hibernoma and conversion from primary endoluminal endoscopic surgery to laparoscopic gastric bypass.

Dr. Muhammed Mustafa Atci is an Associate Professor of Medical Oncology at İstinye University, Liv Hospital Topkapı (2025–present). He previously served as Associate Professor and Education Coordinator at Prof. Dr. Cemil Taşcıoğlu City Hospital (2023–2025). He was also a Medical Oncologist there (2018–2021).

He has been a member of ASCO and the Turkish Society of Medical Oncology since 2018. He is the author or co-author of 19 peer-reviewed international papers on colon, breast, gastric, pancreatic, lung, thyroid, sarcoma, and colorectal cancers.

Notable works include a multicentre study on stage IIB colon cancer survival (Journal of Chemotherapy). He also studied the De Ritis ratio for lung metastasis in testicular cancer (Current Urology). His prognostic studies used PET/CT, MSI, lymph node ratio, and metabolic tumor volume.

Dr. Siripong Lakkhanawong, MD, is a specialist in Family Medicine, General Surgery, and Plastic Surgery. He has more than 25 years of medical experience.

He provides patient-focused care with a strong emphasis on safety and professional standards. His work centers on general and plastic surgery. His goal is to achieve consistent, long-lasting surgical outcomes.

Experience 

2019 Medipol University Pendik Hospital 

2016 - 2019 Medical Park Hospital 

2015 - 2016 Derince Training and Research Hospital 

2014 - 2015 Yuzuncu Yıl University Faculty of Medicine 

2009 - 2014 Recep Tayyip Erdogan University Training and Research Hospital 

2007 - 2009 Yesilyurt No. 4 Emergency Health Services Station Education 

2014 Recep Tayyip Erdogan University Faculty of Medicine, Pediatric Surgery 

2007 Erciyes University, Faculty of Medicine 

Publications 

1- COMPARISON OF ULTRASONOGRAPHY AND HISTOPATOLOGICAL RESULTS IN CHILDHOOD APPENDICITIS M Kilic HS Yalcin AS Calapoglu Rize Training and Research Hospital RTEU Faculty of Medicine 

2- Treatment of the Patient with Gluteal Ulcer and Infantile Hemangioma with Propranolol HS Yalcin, M Kilic Rize Training and Research Hospital Department of Pediatric Surgery 

3- USE OF HYACYST IN THE TREATMENT OF REPEAT URINARY TRACT INFECTIONS IN CHILDREN M Kılıç [1], S Cakmak [1], I.S. Arda [2] [1] Rize Training and Research Hospital, Department of Pediatric Surgery, [2] RTEU Faculty of Medicine, Department of Pediatric Surgery 

4- PITBULL ATTACK: VIOLENCE OR IMPRUDENCE? Founder, M. Kilic, S. Cakmak, I.S. Arda. Rize University Faculty of Medicine Department of Pediatric Surger

Specializations

Adult and Pediatric ENT Diseases

Plastic Surgery Procedures (Rhinoplasty, Protruding Ear Correction)

Filling-Botox Procedures

Endoscopic/Microscopic Middle Ear Surgery

Sleep Apnea and Snoring Surgery

Tonsil and Adenoid Operations with Plasma-Evaporation Method

Specializations

Cancer Surgery

Pancreatic Surgery

Bile Duct Surgery

Bariatric Metabolic Surgery

Oncological Surgery

Breast Surgery

Gastric cancer

Colon cancer

Thyroid Cancer

Obesity Surgery

Diabetes Surgeries

Specializations

Head and Neck Surgery

Surgical Treatment of Head and Neck Cancers

Dizziness (Vertigo)

Endoscopic Sinus Surgeries

Hearing Loss and Ear Diseases Surgery

Endoscopic Head and Neck Diseases Surgery

Head and Neck Diseases Microsurgery

Salivary Gland Diseases and Surgery

PERSONAL INFORMATION

Date of Birth: 18.08.1968

Place of Birth: Konya – Cihanbeyli

Higher Education: Istanbul University Cerrahpasa Faculty of Medicine (1991)

Specialization: Istanbul University Cerrahpasa Faculty of Medicine, Department of General Surgery

Specialization Graduation Thesis: Comparison of L-thyroxine Bromocriptine in Relation to

TSH Suppression After Total Thyroidectomy (19.02.1997)

Military Service: Sivas Military Hospital (1999-2000)

Foreign Language: English

WORK EXPERIENCE

- May 15, 1997-1999 – Metropolitan Florence Nightingale Hospital, General Surgeon

- July 1999 – September 2000 – Sivas Military Hospital

- Since October 2000 – Metropolitan Florence Nightingale Hospital, General Surgeon