Development and Prospective Validation of a Risk Calculator That Predicts a Low Risk Cohort for Atypical Ductal Hyperplasia Upstaging to Malignancy: Evidence for a Watch and Wait Strategy of a High-Risk Lesion

Daniel Ben Lustig, Michael Guo, Claire Liu, Rebecca Warburton, Carol Dingee, Jin‐Si Pao, Urve Kuusk, Yi Chen, Elaine McKevitt