RT Journal Article SR Electronic A1 Mosley, Mary T1 SSO-ASTRO Consensus Guideline on Margin Widths in BCT JF MD Conference Express YR 2014 FD SAGE Publications VO 14 IS 31 SP 29 OP 30 DO 10.1177/155989771431023 UL http://mdc.sagepub.com/content/14/31/29.abstract AB The Society of Surgical Oncology and the American Society for Radiation Oncology have published a consensus guideline on margin widths in breast-conserving therapy, which is defined as surgical removal of the primary tumor with a margin of surrounding normal tissue followed by whole breast radiation therapy, as discussed in this article.