Frödin, T, et al. “Gluten-Free Diet for Dermatitis Herpetiformis: The Long-Term Effect on Cutaneous, Immunological and Jejunal Manifestations”. Acta Dermato-Venereologica, vol. 61, no. 5, Sept. 1981, pp. 405-11, doi:10.2340/0001555561405411.