Received: 28 September 2018
Accepted: 10 December 2018
First Online: 3 January 2019
: This research was approved by the institutional review board (IRB) at MD Anderson Cancer Center, Houston, Texas, USA, and a waiver for informed consent was obtained.
: Not applicable (waiver of informed consent granted by IRB).
: Jorge Cortes has received research support (for the Institution) from BMS, Novartis, Pfizer, and Takeda. All other authors declare that they have no competing interests.
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