| Rank | Clinic Name | Patient Rating | Country | Lead Doctor | experience | Techniques | Best For | Why It’s Ranked | Accreditations |
|---|---|---|---|---|---|---|---|---|---|
| #1 | 4.3 / 5 (20 reviews) | Vienna, Austria | 32+ years | ECG | — | — | International Organization for Standardization | ||
| #2 | 4.5 / 5 (19 reviews) | Vienna, Austria | — | — | — | — | — | International Organization for Standardization |