An Assessment of the Biological and Clinical Effects of Palbociclib (PD 0332991) with Ovarian Suppression and Letrozole in the Neoadjuvant Treatment of Patients with Premenopausal Estrogen-Receptor Positive/ HER2-Negative Primary Breast Cancer

This cross-sectional study will use different modes of survey administration to examine how the level of harm patients sustain due to a medical error or adverse event influences Minnesota physicians' willingness to disclose them to patients and/or their families. A random sample of 8,000 currently licensed physicians will be selected from the state licensure database to participate in this study.