Herrera Guerra Angel Alberto, Osguthorpe Russell J
Department of Pediatrics, Division of Pediatric Infectious Disease of the University of Utah, Salt Lake City, UT 84158, USA.
Clin Pediatr (Phila). 2010 May;49(5):499-501. doi: 10.1177/0009922809360928. Epub 2010 Feb 17.