1. Human Embryology;Hamilton,1945
2. Triple kidney with a horseshoe component;Hanley;Brit. J. Urol.,1942
3. Rare variety of horseshoe kidney;Jacobs;Brit. J. Urol.,1943
4. Variations in early development of kidney in pig embryos, with special reference to production of anomalies;Lewis;Anat. Rec.,1915
5. A quadruple kidney with a horseshoe component;Swick;J. Mt. Sinai Hosp.,1937