RT Journal Article SR Electronic T1 Erratum to: Metastatic Merkel cell carcinoma response to nivolumab JF Journal for ImmunoTherapy of Cancer JO J Immunother Cancer FD BMJ Publishing Group Ltd SP 27 DO 10.1186/s40425-017-0221-x VO 5 IS 1 A1 Walocko, Frances M. A1 Scheier, Benjamin Y. A1 Harms, Paul W. A1 Fecher, Leslie A. A1 Lao, Christopher D. YR 2017 UL http://jitc.bmj.com/content/5/1/27.abstract