1. Candiolo Cancer Institute–Fondazione del Piemonte per l'Oncologia (FPO), IRCCS, Candiolo, Torino 10060, Italy.
2. FIRC Institute of Molecular Oncology (IFOM), Milano 20139, Italy.
3. Department of Oncology, University of Torino, Candiolo, Torino 10060, Italy.
4. Merrimack Pharmaceuticals Inc., Cambridge, MA 02139, USA.
5. Roswell Park Cancer Institute, Buffalo, NY 14263, USA.
6. Medical Oncology Department, Hospital del Mar, Barcelona 08003, Spain.
7. Cancer Research Program, FIMIM (Hospital del Mar Medical Research Institute), Hospital del Mar, Barcelona 08003, Spain.