Katherine Choi loved building the ΒιΆΉΣ³»΄«Γ½ College of Medicine as a student. So when a leader of ΒιΆΉΣ³»΄«Γ½βs new partnership obstetrics and gynecology residency talked to Choi about building its new program, her reaction was swift and certain: βLetβs do this.β On Friday, Choi got the opportunity, matching into an OB-GYN specialty at North Florida Regional Medical Center in Gainesville,…