1. Singulex, Inc., Alameda, California, USA
2. TriCore Reference Laboratories, Albuquerque, New Mexico, USA
3. Department of Pathology, Stanford University School of Medicine, Stanford, California, USA
4. Division of Infectious Diseases and Geographic Medicine, Department of Medicine, Stanford University School of Medicine, Stanford, California, USA
5. Clinical Microbiology Laboratory, Stanford Health Care, Stanford, California, USA