1. Sherman, H. C. and Smith, S. L.: The Vitamins.The Chemical Catalogue Company, New York, 2nd Edition, 1931.
2. McCarrison, R.: Studies in Deficiency Disease.Oxford Medical Publications, London, 1921; Faulty Food in Relation to Gastrointestinal Disorder.J. A. M. A., 78:1, 1922; Vitamin Deficiency and Its Effect on Health.Brit. Med. J., 1:358, 1925.
3. Medical Research Council: Vitamins: A Survey of Present Knowledge, London, H. M. Stationery Office, Special Report Series No. 167, 1932.
4. Alvarez, W. C.: Nervous Indigestion. P. B. Hoeber, Inc., New York, 1931;Minn. Med., 14:296, 1931;Am. J. Dig. Dis., 2:128, April, 1935.
5. Morse, J. L.: Fads and Fancies in Present Day Pediatrics.Pa. Med. J., 35:279, 1932.