1. Ectopic ureteroceles in infants and children: clinical study;Ericson;Acta Chir. Scand.,1954
2. Ureteroceles in infancy and childhood, report on 44 cases;Uson;Pediatrics,1961
3. Ureteroceles in infancy and childhood;Gross;Pediatrics,1954
4. Ureterocele: study of 94 instances in 80 infants and children;Campbell;Surg. Gynecol. Obstet.,1954