TY - JOUR T1 - Clinical practice guidelines for the care and treatment of breast cancer: breast radiotherapy after breast-conserving surgery (summary of the 2003 update) JF - Canadian Medical Association Journal JO - CMAJ SP - 437 LP - 439 VL - 168 IS - 4 AU - Timothy Whelan AU - Ivo Olivotto AU - Mark Levine A2 - , Y1 - 2003/02/18 UR - http://www.cmaj.ca/content/168/4/437.abstract ER -