RT Journal Article SR Electronic T1 Decrease in tumor content assessed in biopsies is associated with improved treatment outcome response to pembrolizumab in patients with rare tumors JF Journal for ImmunoTherapy of Cancer JO J Immunother Cancer FD BMJ Publishing Group Ltd SP e000665 DO 10.1136/jitc-2020-000665 VO 8 IS 1 A1 Tapia, Coya A1 Aung, Phyu P. A1 Roy-Chowdhuri, Sinchita A1 Xu, Mingxuan A1 Ouyang, Fengying A1 Alshawa, Anas A1 Hajjar, Joud A1 Singh, Gopal A1 Yang, Vincent A1 Castillo, Lilibeth A1 Le, Hung A1 Murthy, Ravi A1 Stephen, Bettzy A1 Hess, Kenneth R A1 Wistuba, Ignacio A1 Naing, Aung YR 2020 UL http://jitc.bmj.com/content/8/1/e000665.abstract 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.