Optimization of cGMP purification and expansion of umbilical cord blood-derived T-regulatory cells in support of first-in-human clinical trials. - McKenna DH Jr; Sumstad D; Kadidlo DM; Batdorf B; Lord CJ; Merkel SC; Koellner CM; Curtsinger JM; June CH; Riley JL; Levine BL; Miller JS; et al. (Cytotherapy, 2017)