Received: 1 October 2020
Accepted: 2 November 2020
First Online: 30 November 2020
Ethics approval and consent to participate
: In vivo studies were approved by the Institutional Animal Care and Use Committee of ALX Oncology and UTSW.
: Not applicable.
: TCK, AC, OH, JTS, ES, LD, SEK, DF, SB, BH, JS, and HIW were all employed by ALX Oncology and are shareholders. JP is employed by ALX Oncology and is a shareholder.