Immunotherapy biomarkers 2016: overcoming the barriers ====================================================== * James L. Gulley * Jay A. Berzofsky * Marcus O. Butler * Alessandra Cesano * Bernard A. Fox * Sacha Gnjatic * Sylvia Janetzki * Shyam Kalavar * Vaios Karanikas * Samir N. Khleif * Ilan Kirsch * Peter P. Lee * Cristina Maccalli * Holden Maecker * Jeffrey Schlom * Barbara Seliger * Janet Siebert * David F. Stroncek * Magdalena Thurin * Jianda Yuan * Lisa H. Butterfield