[RH FACTOR AND DURATION OF PREGNANCY].
D000028:Abortion, Induced; D000022:Abortion, Spontaneous; D005260:Female; D006801:Humans; D007234:Infant, Premature; D011247:Pregnancy; D011273:Pregnancy, Prolonged; D012204:Rh-Hr Blood-Group System
D012204:Rh-Hr Blood-Group System
ABORTION; INFANT, PREMATURE; PREGNANCY; PREGNANCY, PROLONGED; RH FACTORS
FATORE RH E DURATA DELLA GRAVIDANZA.