organ-at-risk (OAR) delineation for breast-cancer radiotherapy (RT) and its dosimetric
impact as the first step of a Radiation Therapy Oncology Group effort to establish a breast
cancer atlas. METHODS AND MATERIALS: Nine radiation oncologists specializing in breast
RT from eight institutions independently delineated targets (eg, lumpectomy cavity, boost
planning target volume, breast, supraclavicular, axillary and internal mammary nodes, chest …