Z. Durak, S. Buber, E. Devrim, H. Kocaoglu, and I. Durak, “Aquoeus Extract from Rhubarb Plant Inhibits Adenosine Deaminase Activity in Cancerous and Non Cancerous Human Gastric and Colon Tissues”, JPRC, vol. 1, no. 1, pp. 9-13, May 2015.