1. Ureterocele; a study of 94 instances in 80 infants and children;Campbell;Surg., Gynec. & Obst.,1951
2. Ureteroceles in children, with emphasis on the frequency of ectopic ureter-oceles;Dorst;Radiology,1960
3. Experiences with ectopic ureteroceles;Johnston;Brit. J. Urol.,1969
4. Ectopic ureterocele in infants and children; clinical study;Ericsson;Acta Chir. Scand.,1954
5. Simple and ectopic ureterocele in infancy and childhood;Malek;Surg., Gynec. & Obst.,1972