title: Ecology of contraception.
mesh_terms: D001291:Attitude of Health Personnel; D003075:Coitus; D003267:Contraception / Q000009:adverse effects*; D003270:Contraceptive Agents / Q000009:adverse effects; D004348:Drug Labeling; D005260:Female; D006801:Humans; D007434:Intrauterine Devices / Q000009:adverse effects; D010817:Physician-Patient Relations; D002583:Uterine Cervical Neoplasms / Q000517:prevention & control
chemical_list: D003270:Contraceptive Agents