Urology department at Sher- E-Bangla Medical College , Barisal.
assistant professor at faculty of medicine, misrata university, misrata, Libya.
Professor, School of Medical & Health Sciences, Tung Wah College, Hong Kong.
medical Faculty, university of Siegen,Germany
Harvard University, United states
Department of Urology, Case Western Reserve University, USA
Sidi Bel Abes, Algeria
Cwm Taff Morgannwg University Health Board & University of Swansea
Faculty of Medicine, Cairo University, Egypt
Chapman university and University of California Irvine
Mansoura University, Egypt
University Federal of Rio Grande do Sul, Brazil
Autonomous University of Mexico, Mexico
PGY V Urology Saint George Hospital UMC Ashrafieh, Lebanon
University Sultan Moulay Slimane, Morocco
Cairo University, Egypt
Health Science University Tepecik Training and Research Hospital, Turkey
King Saud bin Abdulaziz University for Health Sciences, Saudi Arabia