1. District of Columbia Department of Forensic Sciences, Public Health Laboratory Division, Washington, District of Columbia, USA
2. Division of Clinical Microbiology, Department of Laboratory Medicine and Pathology, Rochester, Minnesota, USA
3. Microbiome Program, Center for Individualized Medicine, Rochester, Minnesota, USA
4. Department of Surgery, Rochester, Minnesota, USA
5. Division of Infectious Diseases, Department of Medicine, Mayo Clinic, Rochester, Minnesota, USA