Economic Analysis of Targeting Chemotherapy Using a 21-Gene RT-PCR Assay in Lymph-Node"Negative, Estrogen-Receptor"Positive, Early-Stage Breast CancerByJohn Hornberger, MD,Leon E. Cosler, PhD, RPh,Gary H. Lyman, MD, MPH, FRCP (Edin)May 1st 2005
