1. Stones in the ureter;Carstensen;Acta Chir. Scand. (Suppl.),1973
2. Prognosis of stone in the ureter;Sandegard;Acta Chir. Scand. (Suppl.),1956
3. Loop catherer delivery of ureteral calculi;Bowers;J. Urol.,1973
4. A critical review of stone manipulation: a 5-year study;Mahon;J. Urol.,1973
5. Management of ureteric calculi: a review of 500 cases;Butler;J. Ir. Med. Assoc.,1973