PT - JOURNAL ARTICLE AU - Chen, Shuming AU - Crabill, George A. AU - Pritchard, Theresa S. AU - McMiller, Tracee L. AU - Wei, Ping AU - Pardoll, Drew M. AU - Pan, Fan AU - Topalian, Suzanne L. TI - Mechanisms regulating PD-L1 expression on tumor and immune cells AID - 10.1186/s40425-019-0770-2 DP - 2019 Dec 01 TA - Journal for ImmunoTherapy of Cancer PG - 305 VI - 7 IP - 1 4099 - http://jitc.bmj.com/content/7/1/305.short 4100 - http://jitc.bmj.com/content/7/1/305.full SO - J Immunother Cancer2019 Dec 01; 7 AB - Markup server — Error Not Found The page you were trying to reach could not be found. Please check the address for the page you were trying to reach. If you believe you have reached this page in error, you may contact us with any questions.