title: Bleeding problems and progestogen-only contraception.
authors.affiliation: Victoria Clinic, Nottingham, UK.
authors.forename: Charlotte
authors.initials: C
authors.lastname: Porter
authors.forename: Margaret C P
authors.initials: MC
authors.lastname: Rees
mesh_terms: D000284:Administration, Oral; D003271:Contraceptive Agents, Female / Q000008:administration & dosage / Q000009:adverse effects*; D003376:Counseling; D017135:Desogestrel / Q000627:therapeutic use; D004343:Drug Implants; D004717:Endometrium / Q000187:drug effects; D045166:Estradiol Congeners / Q000627:therapeutic use; D004997:Ethinyl Estradiol / Q000627:therapeutic use; D005260:Female; D006801:Humans; D007273:Injections, Intramuscular; D016912:Levonorgestrel / Q000494:pharmacology; D008599:Menstruation Disturbances / Q000139:chemically induced* / Q000517:prevention & control; D045167:Progesterone Congeners / Q000008:administration & dosage / Q000009:adverse effects*
chemical_list: D003271:Contraceptive Agents, Female; D004343:Drug Implants; D045166:Estradiol Congeners; D045167:Progesterone Congeners; D004997:Ethinyl Estradiol; D016912:Levonorgestrel; D017135:Desogestrel