Specialization in obstetrics and gynecology--changing standards.
Merrill
J A
JA
American Board of Obstetrics and Gynecology, Inc., Seattle, WA 98103.
D002568:Certification / Q000706:statistics & numerical data; D005544:Forecasting; D006176:Gynecology / Q000592:standards* / Q000706:statistics & numerical data / Q000639:trends; D006801:Humans; D009774:Obstetrics / Q000592:standards* / Q000706:statistics & numerical data / Q000639:trends; D013038:Specialization / Q000592:standards* / Q000706:statistics & numerical data / Q000639:trends; D014481:United States