1 Department of Laboratory Medicine and Pathobiology (Tat, Kus) and of Medicine (Nadarajah), Temerty Faculty of Medicine, University of Toronto; Public Health Ontario (Nadarajah, Kus), Toronto, Ont.; Oak Valley Health (Nadarajah), Markham Stouffville Hospital, Markham, Ont.
2 Department of Laboratory Medicine and Pathobiology (Tat, Kus) and of Medicine (Nadarajah), Temerty Faculty of Medicine, University of Toronto; Public Health Ontario (Nadarajah, Kus), Toronto, Ont.; Oak Valley Health (Nadarajah), Markham Stouffville Hospital, Markham, Ont. julianne.kus@oahpp.ca.