PT - JOURNAL ARTICLE AU - Puccini, Alberto AU - Battaglin, Francesca AU - Iaia, Maria Laura AU - Lenz, Heinz-Josef AU - Salem, Mohamed E TI - Overcoming resistance to anti-PD1 and anti-PD-L1 treatment in gastrointestinal malignancies AID - 10.1136/jitc-2019-000404 DP - 2020 May 01 TA - Journal for ImmunoTherapy of Cancer PG - e000404 VI - 8 IP - 1 4099 - http://jitc.bmj.com/content/8/1/e000404.short 4100 - http://jitc.bmj.com/content/8/1/e000404.full SO - J Immunother Cancer2020 May 01; 8 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.