Department of General Surgery, University of Nebraska Medical Center, Omaha, United States

Department of Surgery, Thomas Jefferson University Hospital, Philadelphia, United States

Research Center Hargeisa Group Hospital, Hargeisa Group Hospital, Manchester, United Kingdom

Department of Surgery, Thomas E. Starzl Transplantation Institute, University of Pittsburgh, Pittsburgh, United States

Department of Medicine and Technological Innovation, University of Insubria, Varese, Italy

Soroka Medical Center, Beersheva, Israel

School of Medicine,Development of Surgery, Washington University, St. Louis, United States

Department of Surgery, Morristown Medical Center, Morristown, United States

Department of Abdominal Transplant, University of Iowa, Iowa City, United States

Department of Otorhinolaryngology, Hafar Central Hospital, Hafr Al Batin, Saudi Arabia

Department of Oral and Maxillofacial Surgery, University of Alabama at Birmingham, Birmingham, United States

Medical School, University of Nicosia, Nicosia, Cyprus

Department of Anesthesiology, Xi’an Chest Hospital, Xi’an, China

Department of Shanghai East Hospital/Thoracic Surgery, Tongji University, Shanghai, China

Department of Urology, The Second Affiliated Hospital of Dalian Medical University, Dalian, China

Department of Orthopaedics and Traumatology, University of Health Sciences Sanliurfa Mehmet Akif Inan Training and Research Hospital, Sanliurfa, Turkey

Department of Neurosurgery, Zhejiang Provincial People's Hospital, Hangzhou, China

Cafam Santa Barbara Clinic, Sanitas University Foundation, Bogota, Colombia

Department of Orthopedics, University of Medicine Tirana, Tirana, Albania

Department of Surgery N 1, Bukovinian State Medical University, Chernivtsi, Ukraine

Department of General Suregry, Cairo University, Cairo, Egypt

Surgical Gastroenterology and Liver Transplantation, All India Institute of Medical Sciences, Patna, India

Department of Pediatric Surgery, Mashhad University of Medical Sciences, Mashhad, Iran

Department of Surgery, University Allassane Ouattara of Bouake, Bouake, Cote d'Ivoire

Department of General Surgery, Fuclty of Medicine, Mansoura University, Mansoura, Egypt

Department of General Surgery, Fergana Medical Institute of Public Health, Fergana, Uzbekistan

Department of Surgery, Division of Cardiac, Thoracic, and Vascular, Sardjito Hospital, Sleman, Indonesia

Department of Surgical Diseases and Transplantology, Tashkent Medical Academy Urgench Branch, Urgench, Uzbekistan