1. Department of Pathology, Hospital del Mar, Barcelona, Spain;
2. Universitat Autonoma, Barcelona, Spain;
3. Institute for Health Science Research Germans Trias i Pujol (IGTP), Badalona, Spain;
4. Department of Pathology, Hospital Germans Trias i Pujol, Badalona, Spain;
5. Department of Pathology, Hospital de Bellvitge, L'Hospitalet de Llobregat, Spain;
6. Department of Oncology, Hospital del Mar, Barcelona, Spain;
7. Department of Pathology, Hospital Clinic i Provincial, Barcelona, Spain;
8. Department of Medical Oncology, Catalan Institute of Oncology, Badalona, Spain