Affiliates: Laboratoire de sciences judiciaires et de médecine légale, Department of Toxicology, 1701 Parthenais Street, Montréal, Québec, Canada H2K 3S7 ; Concordia University, Department of Chemistry & Biochemistry, 7141 Sherbrooke Street West, Montréal, Québec, Canada H4B 1R6 ; Université de Sherbrooke, Department of Mathematics, 2500 Université Boulevard, Sherbrooke, Québec, Canada, J1K 2R1 ; The University of Melbourne, School of Mathematics and Statistics, Parkville, Victoria, Australia, 3010 ; Centre de recherche du Centre hospitalier universitaire de Sherbrooke, 12th Avenue North, Sherbrooke, Québec, Canada, J1H 5N4