RT Journal Article SR Electronic T1 Dual-Photon Absorptiometry: Depleted Sources Inappropriate in Obese Patients with Narrow Collimation JF Journal of Nuclear Medicine JO J Nucl Med FD Society of Nuclear Medicine SP 538 OP 539 VO 31 IS 4 A1 Mazess, Richard B. YR 1990 UL http://jnm.snmjournals.org/content/31/4/538.abstract AB