1 Department of Medical Oncology, Gustave Roussy, Villejuif, France; Université Paris-Saclay, Saint-Aubin, France. Electronic address: michel.ducreux@gustaveroussy.fr.
2 Department of Oncology, Tampere University Hospital, Tampere Tampere university, Faculty of medicine and life sciences Tampere, FINLAND.
3 Service de Biostatistique et d'Epidémiologie, Gustave Roussy, Villejuif, France; INSERM U1018, CESP, Villejuif, France; Ligue Nationale Contre le Cancer, Cancer Meta-Analysis Platform, Villejuif, France.