Progress made with nasal sprays.
D000830:Animals, Laboratory; D001695:Biology; D003267:Contraception; D003270:Contraceptive Agents; D003271:Contraceptive Agents, Female; D004703:Endocrine System; D005193:Family Planning Services; D006728:Hormones; D010060:Ovulation; D010827:Physiology; D012106:Research
D003270:Contraceptive Agents; D003271:Contraceptive Agents, Female; D006728:Hormones
Animals, Laboratory; Biology; Clinical Research; Contraception; Contraceptive Agents, Female--administraction and dosage; Contraceptive Agents--administraction and dosage; Contraceptive Mode Of Action; Endocrine System; Family Planning; Hormones--administraction and dosage; Inhibition Of Fertilization; Ovulation Suppression; Physiology; Research Methodology