Department of Medical Oncology;
Regina Elena National Cancer Institute;
00144 Rome;
Italy;
Medical Oncology;
Azienda Ospedaliera Universitaria Integrata;
37134 Verona;
Italy;
Department of Biostatistics and Scientific Direction;
Regina Elena National Cancer Institute;
00144 Rome;
Italy;
Medical Oncology;
Ospedale "Belcolle";
01100 Viterbo;
Italy;
S.S. Trinità Hospital;
Sora;
03039 Frosinone;
Italy;
Department of Medical Oncology;
Regina Elena National;
Cancer Institute;
00144 Rome;
Italy;
Pancreatic; cancer; Gemcitabine; Fixed; doserate; Erlotinib; Prognostic; factors; Cutaneous; rash; Phase; Ⅱ; trial;