title: Staging laparotomies in unselected previously untreated patients with non-Hodgkin's lymphomas.
mesh_terms: D000008:Abdominal Neoplasms / Q000175:diagnosis; D000293:Adolescent; D000328:Adult; D000368:Aged; D001466:Barium Sulfate; D001706:Biopsy; D001853:Bone Marrow / Q000473:pathology; D001856:Bone Marrow Examination; D002648:Child; D004064:Digestive System / Q000000981:diagnostic imaging; D006801:Humans; D007813:Laparotomy; D008099:Liver / Q000473:pathology; D008113:Liver Neoplasms / Q000175:diagnosis / Q000473:pathology; D008198:Lymph Nodes / Q000473:pathology; D008220:Lymphography; D008223:Lymphoma / Q000175:diagnosis* / Q000000981:diagnostic imaging / Q000473:pathology; D008875:Middle Aged; D011183:Postoperative Complications; D013154:Spleen / Q000473:pathology; D013160:Splenic Neoplasms / Q000175:diagnosis / Q000473:pathology; D013899:Thoracic Neoplasms / Q000175:diagnosis
chemical_list: D001466:Barium Sulfate