Professor Sung-Tack Oh, MD, PhD is a reproductive endocrinologist and surgeon (especially laparoscopic surgery for endometriosis). He completed his medical school and residency at the Chonnam University & Hospital of Gwangju in South Korea and his reproductive endocrinology research fellowship at the University of North Carolina at Chapel Hill, USA. He has two PhD degrees: biochemistry at Chonnam University Graduate School and computer engineering at Honam University Graduate School. He also graduated from the School of Medicine at Chonnam University and Classic Music College at Gwangju University