Maternal nutrition and lactational amenorrhoea.
D000568:Amenorrhea; D001721:Birth Intervals; D003906:Developing Countries; D004032:Diet / Q000592:standards; D005260:Female; D005714:Gambia; D006801:Humans; D007774:Lactation; D008598:Menstruation; D049590:Postpartum Period; D011247:Pregnancy