Perspectives in immunotherapy: meeting report from the “Immunotherapy Bridge”, Napoli, December 5th 2015 ============================================================================================================ * Paolo A. Ascierto * Maria Libera Ascierto * Silvia Formenti * Sacha Gnjatic * Hans Hammers * Vera Hirsh * Rolf Kiessling * Ignacio Melero * Rita Nanda * Graham Pawelec * Sandro Pignata * Pedro Romero * Daniel E. Speiser * Bernard A. Fox * Francesco M. Marincola