citation journal title = Diseases of the Colon amp Rectum citation issn = 00123706 citation volume = 39 citation issue = 10 citation doi = 101007/BF02081417 citation firstpage = 1146 citation lastpage = 1152 citation publication date = 1996/10/01 citation title = Instant technetium 99m hexamethyl propylenamine oximelabeled leukocyte scan compared with colonoscopy in early assessment of disease extent and activity in acute colitis