1. From the Department of Pathology, Duke University Medical Center, Durham, NC (Drs Bernacki and Stenzel); Motorola Life Sciences, Pasadena, Calif (Drs Farkas and Shi, Ms Chan, and Mr Liu); Coriell Institute for Medical Research, Camden, NJ (Dr Beck); the Department of Laboratory Medicine, Mayo Clinic, Rochester, Minn (Dr Snow Bailey); Laboratory Corporation of America, Research Triangle Park, NC (