1. International Health Management Associates, Inc., Schaumburg, IL 60173, USA
2. Department of Medical Microbiology and Infectious Diseases, Max Rady College of Medicine, University of Manitoba, Winnipeg MB, R3E 0J9, Canada
3. Merck & Co., Inc., Kenilworth, NJ 07033, USA
4. IHMA Europe Sàrl, Monthey/VS, Switzerland