title: Emergency contraception: addendum.
mesh_terms: D044363:Contraception, Postcoital / Q000592:standards* / Q000639:trends; D017277:Drug Approval / Q000331:legislation & jurisprudence*; D005260:Female; D006291:Health Policy / Q000331:legislation & jurisprudence*; D006801:Humans; D016912:Levonorgestrel; D010372:Pediatrics / Q000592:standards / Q000639:trends; D012955:Societies, Medical / Q000592:standards
chemical_list: D016912:Levonorgestrel