1. Gastrointestinal and Endocrine Tumors Unit, Department of Medical Oncology, Vall d'Hebron Institute of Oncology, Autonomous University of Barcelona, 08035 Barcelona, Spain
2. Clinical Pharmacology Service, Department of Pharmacovigilance and Pharmacoepidemiology, Vall d'Hebron University Hospital, Autonomous University of Barcelona, 08035 Barcelona, Spain