Lithell , H., Å. Bruce, I.-B. Gustafsson, N.-J. Höglund, B. Karlström, K. Ljunghall, K. Sjölin, I. Werner, and B. Vessby. “Changes in Lipoprotein Metabolism During a Supplemented Fast and an Ensuing Vegetarian Diet Period”. Upsala Journal of Medical Sciences, vol. 90, no. 1, Mar. 1985, pp. 73-83, doi:10.3109/03009738509178642.