Contraceptives and lactation.
D001208:Asia; D001210:Asia, Southeastern; D001695:Biology; D003267:Contraception; D003276:Contraceptives, Oral; D003906:Developing Countries; D005193:Family Planning Services; D007774:Lactation; D010827:Physiology; D011247:Pregnancy; D012106:Research; D013188:Sri Lanka
D003276:Contraceptives, Oral
Asia; Biology; Clinical Research; Contraception; Contraceptive Methods--side effects; Developing Countries; Family Planning; Lactation; Maternal Physiology; Oral Contraceptives--side effects; Physiology; Research Methodology; Southeastern Asia; Southern Asia; Sri Lanka