title: Second class distinction.
authors.affiliation: The Center for Diabetes Research and the Department of Microbiology, University of Texas Southwestern Medical Center, 5323 Harry Hines Boulevard, Dallas, Texas 75235-9048, USA.
authors.forename: J M
authors.initials: JM
authors.lastname: Baisch
authors.forename: J D
authors.initials: JD
authors.lastname: Capra