1. 1. O'Brien J. S. Synthetic deficit in ganglioside metabolism N. Engl. J. Med. 291 (1974) 975-976.
2. 2 Thomas L. The technology of medicine. N. Engl. J. Med. 285 (1971) 1366-1368.
3. 3. Rapin I. Progressive genetic-metabolic diseases of the central nervous system in children. In Rudolph A. M. (ed.). Pediatrics 16th Edition. New York: Appleton-Century-Crofts. (In press.)
4. 4. McKusick V. A. Heritable Disorders of Connective Tissue Fourth Edition. St. Louis: C. V. Mosby Company. 1972.
5. 5. Berman E. R. Diagnosis of metabolic eye disease by chemical analysis of serum leukocytes and skinfibroblast tissue culture. In Bergsma D. (ed.). The Eye in Inborn Errors of Metabolism. Clinical Delineation of Birth Defects. (In press.)