title: Breast-feeding and fertility regulation: current knowledge and programme policy implications.
mesh_terms: D001942:Breast Feeding; D003267:Contraception / Q000379:methods; D005193:Family Planning Services; D005260:Female; D005298:Fertility; D006291:Health Policy; D006801:Humans; D007223:Infant; D007774:Lactation; D011247:Pregnancy