1. Division of Infectious Diseases, Detroit Medical Center, Wayne State University, Detroit, Michigan
2. Department of Pharmacy Services, Sinai-Grace Hospital, Detroit Medical Center, Wayne State University, Detroit, Michigan
3. Department of Clinical Microbiology, Detroit Medical Center, Detroit, Michigan
4. Division of Epidemiology, Tel-Aviv Sourasky Medical Center, Sackler School of Medicine, Tel-Aviv University, Tel-Aviv, Israel