From the Department of Pathology, Roy J. and Lucille A. Carver College of Medicine, University of Iowa, Iowa City, IA.

Reprints: Dustin E. Bosch, MD, PhD, 340J Eckstein Medical Research Bldg, 431 Newton Rd, Iowa City, IA 52242. E-mail: [email protected].

The authors have no funding or conflicts to declare.