Affiliation: | (1) Department of Microbiology, University of Iowa Hospitals and Clinics, Iowa City, IA, USA;(2) Department of Pediatrics, University of Iowa Hospitals and Clinics, Iowa City, IA, USA;(3) St. Paul Children's Hospital, St. Paul, MN, USA;(4) Present address: Department of Laboratory Medicine, University of Washington Medical Center, 98185 Seattle, WA, USA |