1. Horseshoe kidney: a review of 29 cases;Dajani;Br. J. Urol.,1966
2. Surgery of horseshoe kidney;Lowsley;J. Urol.,1952
3. Horseshoe kidneys;Kilpatrick,1967
4. Considerations sur la lithiase du rein en fer a cheval;Gambetta;J. Urol. Nephrol. (Paris),1966
5. Beitzag zur Nieren;Hildebrand;Deutsche Zschr. Chir. (Leipzig),1894