Oestrogens and thromboembolism.
D003276:Contraceptives, Oral / Q000009:adverse effects*; D004967:Estrogens / Q000009:adverse effects*; D005260:Female; D006801:Humans; D012537:Scandinavian and Nordic Countries; D013923:Thromboembolism / Q000139:chemically induced* / Q000453:epidemiology; D006113:United Kingdom
D003276:Contraceptives, Oral; D004967:Estrogens