| Rank | Clinic Name | Patient Rating | Country | Lead Doctor | experience | Techniques | Best For | Why It’s Ranked | Accreditations |
|---|---|---|---|---|---|---|---|---|---|
| #1 | 3.8 / 5 (6 reviews) | Madrid, Spain | — | CAR T-cell therapy | Pediatric leukemia and lymphoma | National reference center authorized by Spanish Ministry of Health. Doctors have performed 900+ CAR-T procedures. Offers personalized programs for complex pediatric cases. | World's Best Hospitals 2021 by Newsweek |