Endocrinology Department, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, Guangdong, China
Amasya University, Amasya, Turkey
Prince of Wales Hospital, Hong Kong, Shatin, Hong Kong
Chest Department -Faculty of Medicine, Alexandria, Egypt
State Institution "National Research Centre "Academician M. D. Strazhesko Institute of Cardiology, Kyiv, Ukraine
National Taiwan University Hospital, Taipei City, Taiwan
Fertility Center of Las Vegas, Las Vegas, Nevada, United States