RT Journal Article SR Electronic T1 The Uncertain Specific Gamma-Ray Constant for Tl-201 JF Journal of Nuclear Medicine JO J Nucl Med FD Society of Nuclear Medicine SP 645 OP 645 VO 24 IS 7 A1 Marleen M. Moore A1 Douglas R. Shearer YR 1983 UL http://jnm.snmjournals.org/content/24/7/645.abstract AB