1. Department of Pathology, McGill University, Montréal, Canada
2. Department of Pathology and Microbiology, University of Nebraska Medical Center, Omaha, NE, USA
3. Department of Pathology, McGill University, Montréal, Canada; Department of Pathology, Sir Mortimer B. Davis Jewish General Hospital, 3755 Chemin de la Côte Sainte-Catherine, Montréal, QC, Canada H3T IE2