RT Journal Article SR Electronic T1 Immunohistochemical expression and prognostic value of PD-L1 in Extrapulmonary small cell carcinoma: a single institution experience JF Journal for ImmunoTherapy of Cancer JO J Immunother Cancer FD BMJ Publishing Group Ltd SP 42 DO 10.1186/s40425-018-0359-1 VO 6 IS 1 A1 Salhab, Mohammed A1 Migdady, Yazan A1 Donahue, Melanie A1 Xiong, Yiqin A1 Dresser, Karen A1 Walsh, William A1 Chen, Benjamin J. A1 Liebmann, James YR 2018 UL http://jitc.bmj.com/content/6/1/42.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.