The gender ratio in obstetric. Operations.
HOSEMANN
D005260:Female; D006801:Humans; D007743:Labor, Obstetric / Q000150:complications*; D007744:Obstetric Labor Complications; D011247:Pregnancy; D012744:Sex Ratio
LABOR/complications and sequelae; SEX/ratio
Das Geschlechtsverhältnis bei geburtshilflichen. Operationen.