1. Chemical Biological Defence Section, Defence Research & Development Canada-Suffield, Box 4000, Station Main, Medicine Hat, Alberta, Canada T1A 8K6 and Faculty of Pharmacy and Pharmaceutical Science, University of Alberta, Edmonton, Alberta, Canada T6G 2N8
2. Chemical Biological Defence Section, Defence Research & Development Canada-Suffield, Box 4000, Station Main, Medicine Hat, Alberta, Canada T1A 8K6
3. Faculty of Pharmacy and Pharmaceutical Science, University of Alberta, Edmonton, Alberta, Canada T6G 2N8