Guo Z, Chong AS, Shen J, Foster P, Sankary HN, McChesney L, Mital D, Jensik SC, Gebel H, Williams JW. In vivo effects of leflunomide on normal pancreatic islet and syngeneic islet graft function. Transplantation. 1997 Mar 15; 63(5):716-21.