Boston College ONLINE STUDY, Chestnut Hill, Massachusetts, United States
Fizyoostea, Gaziantep, Turkey
KalVista Investigative Site, Fairfax, Virginia, United States
İzmir Katip Çelebi University, İzmir, Çiğli, Turkey
Onassis Cardiac Surgery Center, Athens, Greece
Hospital Universitario Puerta de Hierro, Majadahonda, Madrid, Spain
Medizinische Hochschule Hannover ('Mhh'), Hannover, Germany
Xuzhou Central Hospital, Xuzhou Clinical School of Xuzhou Medical University, Xuzhou, Jiangsu, China
Sakarya University, Sakarya, Turkey