Progestogen-only contraception: a review.
Gupta
Sunanda
S
Waltham Forest Primary Care Trust.
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*
D003271:Contraceptive Agents, Female; D003278:Contraceptives, Oral, Hormonal; D004343:Drug Implants; D011372:Progestins; D016912:Levonorgestrel