Cholecystitis

• Chinese herb medicine hospital of Longnan City — Longnan, Gansu, China
• The first hospital of Tianshui — Tianshui, Gansu, China
• Wuwei turmour hospital — Wuwei, Gansu, China

• Samsun Üniversitesi Klinik Araştırma Etik Kurulu — Samsun, Merkez, Turkey (Türkiye)

• Cedar Sinai — Los Angeles, California, United States
• Cleveland Clinic — Cleveland, Ohio, United States
• Hospital de clinicas jose de San Martin — Buenos Aires, Argentina
• Askelopios Westklinikum Hamburg — Hamburg, Germany

• Safeer Al-Husain Hospital — Karbala, Iraq

• Adana City Training and Research Hospital — Adana, Yüreğir / Adana, Turkey (Türkiye)

• Klinikverbund Südwest Krankenhaus Leonberg Alllgemeinchirurgie — Leonberg, Baden-Wurttemberg, Germany
• Diakonie Klinikum gGmbH Schwäbisch Hall — Schwäbisch Hall, Baden-Wurttemberg, Germany
• Hospital Germans Trias i Pujol General and Digestive Surgery — Badalona, Spain
• General Surgery Department Hospital Plató — Barcelona, Spain

• HOCH Health Ostschweiz, Kantonsspital St.Gallen — Sankt Gallen, St.Gallen, Switzerland

• Sohag University Hospital — Sohag, Egypt

• University of Health Sciences Fatih Sultan Mehmet Health Research and Application Center, — Istanbul, Turkey (Türkiye)

Not specified