[1] Vall dHebron Univ Hosp, Barcelona, Spain
[2] Hosp Miguel Servet, Zaragoza, Spain
[3] Univ Autonoma Barcelona, Corp Sanitaria Univ Parc Tauli, Sabadell, Spain
[4] La Paz Univ Hosp, Dept Endocrinol, Madrid, Spain
[5] Hosp Univ Josep Trueta, Inst Catala Oncol, Girona, Spain
[6] Rey Juan Carlos Univ Hosp, Madrid, Spain
[7] Hosp Gen Segovia, Segovia, Spain
[8] Hosp Badalona Germans Trias & Pujol, Inst Catala Oncol, Badalona, Spain
[9] Catalan Inst Oncol, Barcelona, Spain
[10] Hosp Univ Miguel Servet, Zaragoza, Spain
[11] Hosp Univ Virgen de Valme, Seville, Spain
[12] Hosp Clin Barcelona, Barcelona, Spain
[13] Hosp Univ Virgen de la Victoria, Malaga, Spain
[14] Hosp Univ Ramon y Cajal, Dept Med Oncol, Madrid, Spain