1. Department of Medicine, Division of Infectious Diseases, Washington University School of Medicine, Saint Louis, MO, USA
2. Brown School at Washington University in St. Louis, St. Louis, MO, USA
3. Department of Plant and Microbial Biology, North Carolina State University, Raleigh, NC, USA
4. Department of Internal Medicine, Institute for Informatics, Washington University School of Medicine, Saint Louis, MO, USA