RT Journal Article SR Electronic T1 Effects of Ureteral Function on Assessment of Hydronephrosis JF Journal of Nuclear Medicine JO J Nucl Med FD Society of Nuclear Medicine SP 78 OP 80 VO 33 IS 1 A1 John T. Herrin YR 1992 UL http://jnm.snmjournals.org/content/33/1/78.abstract AB