TY - JOUR T1 - Clinical practice guidelines for the care and treatment of breast cancer: adjuvant systemic therapy for node-negative breast cancer (summary of the 2001 update) JF - Canadian Medical Association Journal JO - CMAJ SP - 213 LP - 213 VL - 164 IS - 2 AU - Mark Levine AU - The Steering Committee on Clinical Practice Guidelines for the Care and Treatment of Breast Cancer Y1 - 2001/01/23 UR - http://www.cmaj.ca/content/164/2/213.abstract ER -