1 Department of Medical Oncology, CHU de Limoges, France.
2 Department of Biostatistics, Centre Léon Bérard, 28 Promenade Léa et Napoléon Bullukian, 69008, Lyon, France.
3 Department of Medical Oncology, Centre Léon Bérard, 28 Prom. Léa et Napoléon Bullukian, 69008, Lyon, France.
4 Department of Research and Development, R&D Unicancer, 101 Rue de Tolbiac, 75654, Paris, France.
5 Department of Cancer Medicine, Gustave Roussy, 114 Rue Edouard Vaillant, 94800, Villejuif, France. Electronic address: suzette.delaloge@gustaveroussy.fr.