Pegram, H J
Purdon, T J
van Leeuwen, D G
Curran, K J
Giralt, S A
Barker, J N
Brentjens, R J
Article History
Received: 15 April 2014
Revised: 12 June 2014
Accepted: 18 June 2014
First Online: 9 July 2014
Competing interests
: RJB is a co-founder, stockholder, and consultant for Juno Therapeutics. The remaining authors declare no conflict of interest.