1. Department of Medical Microbiology, Faculty of Medicine,1 and
2. Faculty of Pharmacy,2 University of Manitoba, and
3. Departments of Medicine3 and
4. Clinical Microbiology,4 Health Sciences Centre, and
5. Department of Microbiology, St. Boniface General Hospital,5 Winnipeg, Manitoba, and
6. Department of Microbiology, Mount Sinai and Princess Margaret Hospitals, University of Toronto,6 and
7. Med-Chem Health Care, Ltd.,7 Toronto, Ontario, Canada