Lifetime personal cigarette smoking and risk of young-onset breast cancer by subtype among non-Hispanic Black and White women in the Young Women's Health History Study. - Ihenacho U; Hamilton AS; Mack WJ; Wu AH; Unger JB; Pathak DR; Hirko KA; Houang RT; Press MF; Schwartz KL; Marcus LR; Velie EM (Breast cancer research and treatment, 2022)