P-216Primum non nocere: Screening patients for fluoropyrimidine-related toxicity risk: The most effective method. (20th June 2018) - Boisdron-Celle, M; Metges, J; Capitain, O; Faroux, R; Stampfli, C; Ferec, M; Laplaige, P; Lecomte, T; Matysiak-Budnik, T; Senellart, H; Campone, M; Morel, A; et al.