The vaginal contraceptive pill.
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D001695:Biology; D003267:Contraception; D003270:Contraceptive Agents; D003271:Contraceptive Agents, Female; D003276:Contraceptives, Oral; D004467:Economics; D004703:Endocrine System; D005193:Family Planning Services; D006728:Hormones; D009644:Norgestrel; D010827:Physiology; D012102:Reproductive Control Agents; D012106:Research; D013672:Technology
D003270:Contraceptive Agents; D003271:Contraceptive Agents, Female; D003276:Contraceptives, Oral; D006728:Hormones; D012102:Reproductive Control Agents; D009644:Norgestrel
Biology; Clinical Research; Contraception; Contraception Research; Contraceptive Agents; Contraceptive Agents, Female; Contraceptive Agents, Progestin; Contraceptive Methods--side effects; Economic Factors; Endocrine System; Family Planning; Female Contraception; Hormones; Norgestrel; Oral Contraceptives--side effects; Physiology; Reproductive Control Agents; Research And Development; Research Methodology; Technology