TY - RPRT TI - Modeling skin collimation using the electron pencil beam redefinition algorithm. AU - Pai-Chun M Chi AU - Kenneth R Hogstrom AU - George Starkschall AU - John A Antolak AU - Robert A Boyd PY - 2005 DO - 10.1118/1.2064808 UR - https://pubmed.ncbi.nlm.nih.gov/16370427/ ID - 16370427 ER -