The Rh problem in obstetrics.
D005260:Female; D006801:Humans; D007743:Labor, Obstetric; D009774:Obstetrics; D011247:Pregnancy / Q000097:blood; D012204:Rh-Hr Blood-Group System; D014937:Work
D012204:Rh-Hr Blood-Group System
LABOR; PREGNANCY/blood in; RH FACTORS