Johnstone Jennie, Patel Samir N
Public Health Ontario (Johnstone, Patel); Dalla Lana School of Public Health (Johnstone), University of Toronto; Department of Laboratory Medicine and Pathobiology (Patel), University of Toronto, Toronto, Ont.
CMAJ. 2017 Sep 5;189(35):E1115. doi: 10.1503/cmaj.170110.