Cancer immunotherapy in special challenging populations: recommendations of the Advisory Committee of Spanish Melanoma Group (GEM) ================================================================================================================================== * Maria Gonzalez-Cao * Teresa Puertolas * Mar Riveiro * Eva Muñoz-Couselo * Carolina Ortiz * Roger Paredes * Daniel Podzamczer * Jose Luis Manzano * Jose Molto * Boris Revollo * Cristina Carrera * Lourdes Mateu * Sara Fancelli * Enrique Espinosa * Bonaventura Clotet * Javier Martinez-Picado * Pablo Cerezuela * Ainara Soria * Ivan Marquez-Rodas * Mario Mandala * Alfonso Berrocal