Chaudhary Pankaj Kumar, Mishra Kamlesh Kumar, and Chaudhary Jitendra Kumar. “Stem Cells: Spatio-Temporal Diversity and Therapeutic Applications”. International Journal of Life Sciences, vol. 4, no. 1, Apr. 2016, pp. 151-8, https://ijlsci.in/ls/index.php/home/article/view/1289.