1. : Personal communication, May, 1955, on case of Turner and Craig (Table 1, case 16).
2. : Surgical Pathology. St. Louis. C. V. Mosby Co. 1953; p. 670.
3. : The Kidney; Medical and Surgical Diseases. New York. Grune & Stratton. 1951; p. 554.
4. : Personal communication, June, 1955, on case of Allen (Table 1, case 20).
5. : Personal communication, January, 1955, on case 5 of Mallory39 (Table 1, case 9).