1. From the Department of Pathology, Keck School of Medicine of the University of Southern California, Los Angeles (Dr Naritoku); the Department of Laboratory Medicine, Albert Einstein College of Medicine, Montefiore Medical Center, Bronx, New York (Dr Vasovic); the Department of Pathology, Albert Einstein College of Medicine, Bronx, New York (Drs Steinberg and Prystowsky); and the Department of Pathology and Genomic Medicine, Houston Methodist Hospital, Houston, Texas (Dr Powell).