Fig. 1From: Development and validation of a predictive model for estimating EGFR mutation probabilities in patients with non-squamous non-small cell lung cancer in New ZealandFlowchart showing the population-based retrospective cohort of patients diagnosed with non-squamous NSCLC in northern New Zealand between 1 January 2010 and 31 July 2017, and the groups of patients used in this study (coloured)Back to article page