title: Dosimetric concerns regarding the 4-field box technique.
authors: James S
authors: JS
authors: Welsh
authors: Jeffrey P
authors: JP
authors: Limmer
mesh_terms: D000368:Aged; D005767:Gastrointestinal Diseases / Q000209:etiology*; D006801:Humans; D008207:Lymphatic Metastasis; D008297:Male; D052801:Male Urogenital Diseases / Q000209:etiology*; D010388:Pelvis; D011471:Prostatic Neoplasms / Q000532:radiotherapy; D011832:Radiation Injuries / Q000209:etiology*; D011878:Radiotherapy / Q000009:adverse effects* / Q000379:methods*; D012107:Research Design