A note on menstruation and conception during lactation.
D001942:Breast Feeding; D005260:Female; D005298:Fertility; D005306:Fertilization; D006801:Humans; D007774:Lactation / Q000502:physiology*; D008598:Menstruation / Q000502:physiology*
FERTILITY; LACTATION/physiology; MENSTRUATION/physiology