Hunt, C.L., Her, Y.F., Law, L.A., Bydon, M., Nassr, A., Smith, J., Mauck, W.D., Eldrige, J.S., Malanga, G.A. and Qu, W. 2017. Five generations of cell preparation: a translational framework for categorizing regenerative stem cell therapies. Journal of the American Academy of Regenerative Medicine. 1, 1 (Jun. 2017). DOI:https://doi.org/10.4081/jaarm.2017.7239.