RT Journal Article SR Electronic T1 Bleeding Rates Necessary for Detecting Acute Gastrointestinal Bleeding with Technetium-99m-Labeled Red Blood Cells in an Experimental Model JF Journal of Nuclear Medicine JO J Nucl Med FD Society of Nuclear Medicine SP 514 OP 520 VO 28 IS 4 A1 David A. Thorne A1 Frederick L. Datz A1 Kent Remley A1 Paul E. Christian YR 1987 UL http://jnm.snmjournals.org/content/28/4/514.abstract AB