1. Département de chimie et biochimie; Université de Moncton; Campus de Moncton Moncton NB E1A 3E9 Canada
2. Atlantic Cancer Research Institute; Moncton NB E1C 8X3 Canada
3. Department of Chemistry and Biochemistry; Mount Allison University; Sackville NB E4L 1G8 Canada
4. Department of Chemistry; University of New Brunswick; Fredericton NB E3B 5A3 Canada