1. University Clinic for Traumatology - Skopje , Republic of North Macedonia
2. University Clinic for Orthopedic Diseases – Skopje , Republic of North Macedonia
3. University Clinic for Digestive Surgery – Skopje , Republic of North Macedonia
4. University Clinic for Thoracic and Vascular Surgery – Skopje , Republic of North Macedonia
5. University Clinic for Gastroenterohepatology – Skopje , Republic of North Macedonia