1. Pregnancy and urináry calculi;Amar;California Medicine,1966
2. Reflux in duplicated ureters;Amar;British Journal of Urology,1968
3. Reimplantation of duplicated ureters for treatment of reflux;Amar;Journal of Urology,1972
4. Coexistence of urinary calculi and vesicoureteral reflux;Amar;Journal of the American Medical Association,1968