Breast Cancer Subtypes Based on ER/PR and Her2 Expression: Comparison of Clinicopathologic Features and Survival

Adedayo A. Onitilo, MD, MSCR, FACP, Jessica M. Engel, MSN, FNP-BC, Robert T. Greenlee, PhD and Bickol N. Mukesh, PhD Adedayo A. Onitilo, MD, MSCR, FACP, Department of Hematology/Oncology, Marshfield Clinic Weston Center, 3501 Cranberry Blvd, Weston, Wisconsin 54401 Jessica M. Engel, MSN, FNP-BC, Department of Hematology/Oncology, Marshfield Clinic, 1000 North Oak Avenue, Marshfield, Wisconsin 54449 Robert T. Greenlee, PhD, Epidemiology Research Center, Marshfield Clinic Research Foundation, 1000 North Oak Avenue, Marshfield, Wisconsin 54449 Bickol N. Mukesh, PhD, Biomedical Informatics Research Center, Marshfield Clinic Research Foundation, 1000 North Oak Avenue, Marshfield, Wisconsin 54449. Current affiliation: Alcon Laboratories, Inc., 6201 South Freeway, Fort Worth, TX 76134 Reprint Requests: Adedayo A. Onitilo, MD, MSCR, FACP, Marshfield Clinic Weston Center, 3501 Cranberry Boulevard, Weston, WI 54476, Tel: 715-393-1400, Fax: 715-393-1399, Email: onitilo.adedayo{at}marshfieldclinic.org