PT - JOURNAL ARTICLE AU - Whelan, Timothy AU - Olivotto, Ivo AU - Levine, Mark ED - , TI - Clinical practice guidelines for the care and treatment of breast cancer: breast radiotherapy after breast-conserving surgery (summary of the 2003 update) DP - 2003 Feb 18 TA - Canadian Medical Association Journal PG - 437--439 VI - 168 IP - 4 4099 - http://www.cmaj.ca/content/168/4/437.short 4100 - http://www.cmaj.ca/content/168/4/437.full SO - CMAJ2003 Feb 18; 168