title: Pill-a-month as an oral contraceptive.
authors.forename: F
authors.initials: F
authors.lastname: Hefnawi
authors.forename: M
authors.initials: M
authors.lastname: Hassanein
authors.forename: N
authors.initials: N
authors.lastname: Younis
mesh_terms: D000367:Age Factors; D000568:Amenorrhea; D001695:Biology; D001835:Body Weight; D002490:Central Nervous System; D002584:Cervix Uteri; D003267:Contraception; D003270:Contraceptive Agents; D003271:Contraceptive Agents, Female; D003276:Contraceptives, Oral; D003277:Contraceptives, Oral, Combined; D004064:Digestive System; D004194:Disease; D004412:Dysmenorrhea; D004703:Endocrine System; D004717:Endometrium; D004967:Estrogens; D005069:Evaluation Studies as Topic; D005193:Family Planning Services; D005835:Genitalia; D005836:Genitalia, Female; D006261:Headache; D006728:Hormones; D007774:Lactation; D008599:Menstruation Disturbances; D009325:Nausea; D010298:Parity; D010342:Patient Acceptance of Health Care; D010352:Patient Dropouts; D010827:Physiology; D011800:Quinestrol; D012106:Research; D014566:Urogenital System; D014599:Uterus; D014839:Vomiting
chemical_list: D003270:Contraceptive Agents; D003271:Contraceptive Agents, Female; D003276:Contraceptives, Oral; D003277:Contraceptives, Oral, Combined; D004967:Estrogens; D006728:Hormones; D011800:Quinestrol
keywords: Acceptor Characteristics; Age Factors; Amenorrhea; Biology; Body Weight; Central Nervous System; Central Nervous System Effects; Cervical Effects; Clinical Research; Contraception; Contraceptive Agents, Female--administraction and dosage; Contraceptive Agents, Female--side effects; Contraceptive Agents, Progestin--administraction and dosage; Contraceptive Agents, Progestin--side effects; Contraceptive Agents--administraction and dosage; Contraceptive Agents--side effects; Contraceptive Effectiveness; Contraceptive Methods--side effects; Diseases; Dropouts; Dysmenorrhea; Endocrine System; Endometrial Effects; Endometrium; Estrogens; Family Planning; Gastrointestinal Effects; Genitalia; Genitalia, Female; Headache; Hormones; Lactation; Menstruation Disorders; Nausea; Oral Contraceptives, Combined; Oral Contraceptives--side effects; Parity; Physiology; Quinestrol--administraction and dosage; Quinestrol--side effects; Quingestanol Acetate--administraction and dosage; Quingestanol Acetate--side effects; Research Methodology; Urogenital System; Use-effectiveness; Uterus; Vomiting