India
Italy
Greece
Romania
University Simón Bolívar de Barranquilla, Colombia
United States
Azerbaijan
Children's Health, Ireland
Faculty ir Veterinary Medicine-Universidad Autónoma de Tamaulipas,Mexico
University of Rochester School of Medicine and Dentistry, USA
Salmaniya Medical Complex- Ministry of Health and Arabian Gulf University, College of Medicine & Medical sciences,Bahrain
Albert Einstein College of Medicine, USA
Suphannahong Dermatology Clinic, Thailand
Peking university, China