1. Bone disturbances in injuries to the spinal cord and cauda equina (paraplegia); their prevention by ambulation;Abramson;Journal of Bone and Joint Surgery,1948
2. Urinary calcium and kidney stones in paraplegia. Report of an attempted prospective study;Burr;Paraplegia,1974
3. Calcium excretion in quadriplegia;Claus-Walker;Archives of Physical Medicine and Rehabilitation,1972
4. Renal tubular acidosis of pyelonephritis with renal stone disease;Cochran;British Medical Journal,1968
5. DiPalma, J. R. (ed). (1971) In Drill's Pharmacology in Medicine, 4th ed., New York: McGraw-Hill. p. 1650.