La Francesca S, Ting AE, Sakamoto J, Rhudy J, Bonenfant NR, Borg ZD, Cruz FF, Goodwin M, Lehman NA, Taggart JM, et al. Multipotent adult progenitor cells decrease cold ischemic injury in ex vivo perfused human lungs: an initial pilot and feasibility study. Transplant Res. 2014;3(1):19.