1. The calyceal crescent —A roentgenographic sign of obstructive hydronephrosis;Dunbar;>Am. J. Roentgenol.,1970
2. Visualization of individual papillary ducts (ducts of Bellini) by excretory urography in childhood hydronephrosis;Griscom;>Radiology,1973
3. Congenital megacalyces;Kazakewich;>Pediat. Radiol.,1974
4. Ureteropelvic obstruction of duplex kidney;Lifland;>Urol.,1975
5. Malposition of the colon in left renal agenesis and ectopia;Mascatello;>Radiol.,1976