The marketing of obstetrics.
D003256:Community Participation; D005260:Female; D006748:Hospital Departments / Q000191:economics*; D006801:Humans; D008389:Marketing of Health Services; D008427:Maternal Health Services / Q000191:economics*; D009775:Obstetrics and Gynecology Department, Hospital / Q000191:economics*; D011247:Pregnancy; D014481:United States