Cook Deborah, Rocker Graeme
From the Departments of Medicine, Clinical Epidemiology, and Biostatistics, McMaster University, Hamilton, ON (D.C.), and the Department of Medicine, Dalhousie University, Halifax, NS (G.R.) - both in Canada.
N Engl J Med. 2014 Jun 26;370(26):2506-14. doi: 10.1056/NEJMra1208795.