title: The optimum radiation schedule in treatment of superior vena caval obstruction: importance of 99mTc scintiangiograms.
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D002283:Carcinoma, Bronchogenic / Q000150:complications / Q000532:radiotherapy; D002648:Child; D002675:Child, Preschool; D003097:Collateral Circulation; D006801:Humans; D008175:Lung Neoplasms / Q000150:complications* / Q000532:radiotherapy; D008875:Middle Aged; D011877:Radionuclide Imaging; D011879:Radiotherapy Dosage; D013667:Technetium; D013927:Thrombosis / Q000000981:diagnostic imaging / Q000209:etiology / Q000532:radiotherapy*; D014683:Vena Cava, Superior / Q000000981:diagnostic imaging
chemical_list: D013667:Technetium