Abstract 38: Ex Vivo Expanded Regulatory T Cells Combined With Short-term Costimulation Blockade To Prevent Rejection Of Vascularized Composite Allografts. (April 2018) - Grzelak, Michael J.; Oh, Byoung Chol; Furtmüller, Georg J.; Iglesias, Marcos; Fryer, Madeline; Akre, Paul J.; Cooney, Damon S.; Lee, W.P. Andrew; Raimondi, Giorgio; Brandacher, Gerald