1 Medical Oncology Department, Catalan Institute of Oncology, Badalona, Barcelona 08916, Spain; Medicine Department, University of Barcelona, Barcelona, Spain. Electronic address: rmesia@iconcologia.net.
2 Medicine Department, University of Barcelona, Barcelona, Spain; Department of Medical Oncology and Cancer Epidemiology Research Program, Catalan Institute of Oncology, IDIBELL, L'Hopsitalet de Llobregat, Barcelona, Spain.