RT Journal Article SR Electronic T1 Validation of Renal Output Efficiency as an Objective Quantitative Parameter in the Evaluation of Upper Urinary Tract Obstruction JF Journal of Nuclear Medicine JO J Nucl Med FD Society of Nuclear Medicine SP 845 OP 848 VO 34 IS 5 A1 Chaiwatanarat, Thawachai A1 Padhy, Ajit K. A1 Bomanji, Jamshed B. A1 Nimmon, Cyril C. A1 Sonmezoglu, Kerin A1 Britton, Keith E. YR 1993 UL http://jnm.snmjournals.org/content/34/5/845.abstract AB