A Pan-Canadian Validation Study for the Detection of EGFR T790M Mutation Using Circulating Tumor DNA From Peripheral Blood oleh Shamini Selvarajah, PhD, Sophie Plante, MSc, Marsha Speevak, PhD, Andrea Vaags, PhD, Darren Hamelinck, MSc, Martin Butcher, MSc, Elizabeth McCready, PhD, Daria Grafodatskaya, PhD, Normand Blais, MD, Danh Tran-Thanh, MD, Xiaoduan Weng, MD, Rami Nassabein, MD, Wenda Greer, PhD, Ryan N. Walton, MPH, Bryan Lo, MD, Doug Demetrick, MD, Stephanie Santos, BSc, Bekim Sadikovic, PhD, Xiao Zhang, BSc, MSc, Tong Zhang, MD, Tara Spence, PhD, Tracy Stockley, PhD, Harriet Feilotter, PhD, Philippe Joubert, MD, PhD