[An analysis between patient's main blood groups and the incidence of hemorrhage in the 3rd stage of labor].
D000017:ABO Blood-Group System; D005260:Female; D006801:Humans; D007744:Obstetric Labor Complications; D011247:Pregnancy; D014592:Uterine Hemorrhage / Q000209:etiology*
D000017:ABO Blood-Group System
Analiza współzalezności miedzy czestościa wystepowania krwotoków w trzecim okresie porodu a grupami krwi.