TY - RPRT TI - Geometrically based optimization for extracranial radiosurgery. AU - Ruiguo Liu AU - Thomas H Wagner AU - John M Buatti AU - Joseph Modrick AU - John Dill AU - Sanford L Meeks PY - 2004 DO - 10.1088/0031-9155/49/6/009 UR - https://pubmed.ncbi.nlm.nih.gov/15104321/ ID - 15104321 ER -