Proximal Humerus Fracture

• Republic of Turkey Ministry of Health, Balıkesir Provincial Health Directorate, Atatürk City Hospital — Balıkesir, Turkey (Türkiye)
• Republic of Turkey Ministry of Health, Istanbul Provincial Health Directorate, Kanuni Sultan Suleyman Training and Research Hospital — Istanbul, Turkey (Türkiye)
• Republic of Turkey Ministry of Health, Izmir Provincial Health Directorate, Bakircay University Cigli Training and Research Hospital — Izmir, Turkey (Türkiye)
• Dokuz Eylül University Research and Application Hospital — Izmir, Turkey (Türkiye)

• Salamenca University Hospital — Salamanca, Spain

• Akershus University Hospital — Lørenskog, Oslo, Norway

• UMass Chan Medical School — Worcester, Massachusetts, United States

Not specified

• Azienda Ospedaliera di Rilievo Nazionale "Antonio Cardarelli" — Naples, Campania, Italy

• Damien JOLLY — Reims, France