Dang, L., A. Bui, V. Pham, N. Phan, and P. Pham. “Production of Islet-Like Insulin-Producing Cell Clusters in Vitro from Adipose-Derived Stem Cells”. Biomedical Research and Therapy, Vol. 2, no. 1, Jan. 2015, pp. 184-92, http://home.biomedpress.org/index.php/BMRAT/article/view/37.