title: Risk of blood clots higher for oral contraceptives with certain progestins.
authors: Rebecca
authors: R
authors: Voelker
mesh_terms: D000736:Androstenes / Q000009:adverse effects; D003276:Contraceptives, Oral / Q000009:adverse effects* / Q000737:chemistry; D003534:Cyproterone / Q000009:adverse effects; D003718:Denmark / Q000453:epidemiology; D017135:Desogestrel / Q000009:adverse effects; D004997:Ethinyl Estradiol / Q000009:adverse effects; D005260:Female; D006801:Humans; D016912:Levonorgestrel / Q000009:adverse effects; D009652:Norpregnenes / Q000009:adverse effects; D011372:Progestins / Q000009:adverse effects*; D012042:Registries; D012306:Risk; D054556:Venous Thromboembolism / Q000139:chemically induced* / Q000453:epidemiology
chemical_list: D000736:Androstenes; D003276:Contraceptives, Oral; D009652:Norpregnenes; D011372:Progestins; C033273:Gestodene; D004997:Ethinyl Estradiol; D016912:Levonorgestrel; D017135:Desogestrel; D003534:Cyproterone; C035144:drospirenone