Kaiser Permanente Department of Research, Pleasanton, California, United States
Women Health Hospital, Faculty of medicine, Assiut university, Assiut, Egypt
Institut de recherches cliniques de Montréal, Montreal, Quebec, Canada
Ankara Bilkent City Hospital, Ankara, Çankaya, Turkey
Hospital Gineco Obstétrico Isidro Ayora, Quito, Pichincha, Ecuador
Royal College of Surgeons in Ireland, Manama, Bahrain
UPMC Presbyterian Shadyside, Pittsburgh, Pennsylvania, United States
University of Pennsylvania, Philadelphia, Pennsylvania, United States
Magee-Women's Hospital of UPMC, Pittsburgh, Pennsylvania, United States