Development and validation of a risk prediction model for premenopausal breast cancer in 19 cohorts. - Brantley KD; Jones ME; Tamimi RM; Rosner BA; Kraft P; Nichols HB; O'Brien KM; Adami HO; Aizpurua A; Berrington de González A; Blot WJ; Braaten T; et al. (Breast cancer research : BCR, 2025)