Methods distribution among the three EQAs Methods distribution among the three EQAs. (A) Percentage of the methods chosen in the first phase of 2011 EQA (participants: 47). Methods distribution among the three EQAs. (A) Percentage of the methods chosen in the first phase of 2011 EQA (participants: 47). (B) Percentage of the methods used in the first phase of 2013 EQA (participants: 86). (C) Percentage of the methods used in the 2015 EQA (participants: 92). Nicola Normanno et al. ESMO Open 2017;2:e000160 Copyright © European Society for Medical Oncology. All rights reserved.