RT Journal Article SR Electronic T1 In-111-Labeled Leukocyte Imaging: False-Positive Study Due to Acute Gastrointestinal Bleeding JF Journal of Nuclear Medicine JO J Nucl Med FD Society of Nuclear Medicine SP 803 OP 804 VO 24 IS 9 A1 Mark F. Fisher A1 Thomas G. Rudd YR 1983 UL http://jnm.snmjournals.org/content/24/9/803.abstract AB