Heath, Ryan D., and Veysel Tahan. “Allogenic Adipose Derived Stem Cells Present a Potential Novel Approach for Treating Refractory Fistulizing Crohn’s Disease”. Turkish Journal of Gastroenterology, vol. 27, no. 6, Jan. 2016, pp. 568-9, doi:10.5152/tjg.2016.160008.