title: Progestogen-only contraception: a review.
authors.affiliation: Waltham Forest Primary Care Trust.
authors.forename: Sunanda
authors.initials: S
authors.lastname: Gupta
mesh_terms: D003271:Contraceptive Agents, Female / Q000008:administration & dosage*; D003278:Contraceptives, Oral, Hormonal; D004343:Drug Implants; D005260:Female; D006801:Humans; D007273:Injections, Intramuscular; D016912:Levonorgestrel / Q000008:administration & dosage; D011372:Progestins / Q000008:administration & dosage*
chemical_list: D003271:Contraceptive Agents, Female; D003278:Contraceptives, Oral, Hormonal; D004343:Drug Implants; D011372:Progestins; D016912:Levonorgestrel