title: Clarifying hormone terminology.
authors.forename: George
authors.initials: G
authors.lastname: Gillson
mesh_terms: D003271:Contraceptive Agents, Female / Q000494:pharmacology*; D005260:Female; D006801:Humans; D016912:Levonorgestrel / Q000494:pharmacology*; D011374:Progesterone / Q000502:physiology*; D045167:Progesterone Congeners / Q000494:pharmacology*; D011372:Progestins / Q000494:pharmacology; D009626:Terminology as Topic
chemical_list: D003271:Contraceptive Agents, Female; D045167:Progesterone Congeners; D011372:Progestins; D011374:Progesterone; D016912:Levonorgestrel