TY - RPRT TI - Portal dose image verification: the collapsed cone superposition method applied with different electronic portal imaging devices. AU - Christina Vallhagen Dahlgren AU - Karsten Eilertsen AU - Trude Dahl Jørgensen AU - Anders Ahnesjö PY - 2006 DO - 10.1088/0031-9155/51/2/010 UR - https://pubmed.ncbi.nlm.nih.gov/16394342/ ID - 16394342 ER -