00890nas a2200313 4500000000100000000000100001000000100002008004100003653001100044653001100055653005400066653002500120653005100145653002000196653003200216653003200248653001000280653001600290100001900306700001300325700001400338700001300352700001300365245013100378250001500509300001300524490000700537020003200544 2023 d10aFemale10aHumans10a*Breast Neoplasms/chemically induced/epidemiology10aCase-Control Studies10aContraceptives, Oral, Hormonal/adverse effects10aLogistic Models10a*Progestins/adverse effects10aUnited Kingdom/epidemiology10aAdult10aMiddle Aged1 aD. Fitzpatrick1 aK. Pirie1 aG. Reeves1 aJ. Green1 aV. Beral00aCombined and progestagen-only hormonal contraceptives and breast cancer risk: A UK nested case-control study and meta-analysis a2023/03/22 ae10041880 v20 a1549-1277 (Print) 1549-1277