1. Duke University, Durham, NC 27708, USA
2. CellNetix Pathology and Laboratories, Everett, WA 98201, USA
3. Providence Regional Medical Center Everett, Everett, WA 98201, USA
4. The Everett Clinic, Everett, WA 98201, USA
5. Cleveland Clinic, Robert J. Tomsich Pathology Institute, 9500 Euclid Avenue L25, Cleveland, OH 44195, USA