1. Ureteral obstruction after appendectomy;Kaplan;J. Fed. Surg.,1974
2. Ureteroappendiceal fistula in child;Golimbu;Urology,1974
3. Appendico-cutaneous fistula. A case report;Hedner;Acta Chir. Scand.,1978
4. Spontaneous renal and ureteral fistulas;Higgins;Arch. Surg.,1933
5. Perinephric abscess: an unusual presentation of perforation of the colon;Murray;The Johns Hopkins Med. J.,1977