1. J. Goldberger, G.A. Wheeler, R.D. Lillie, L. Rogers, A further study of butter, fresh beef, and yeast as pellagra preventives: with a consideration of the relation of factor pp of pellagra (and black tongue of dogs) to Vitamin B, United States Public Health Service, 41 (1926) .
2. Vitamin B 2 and the pellagra-like dermatitis in rats;György;Nature,1934
3. Crystalline factor 1;Lepkovsky;Science,1938
4. Vitamin B 6 and skin lesions in rats;Gyürgy;Nature,1939
5. Update on interconversions of vitamin B-6 with its coenzyme;McCormick;J Nutrit.,1999