1. Burne, J., A Treatise on the Causes and Consequence of Habitual Constipation, Longman, Orme, Brown, Green & Longmans, London, 1840.
2. Dimock, E. M., The Treatment of Habitual Constipation by the Bran Method, M.D. thesis,University of Cambridge, Cambridge, U.K., 1936.
3. THE LAXATIVE EFFECT OF A REGENERATED CELLULOSE IN THE DIET