B7-H1 Expression in Wilms TumorCorrelation With Tumor Biology and Disease RecurrenceRitchey, MichaelAuthor informationDepartment of Urology, Mayo Clinic College of Medicine, Scottsdale, ArizonaJournal of Urology 179(5):p 1959-1960, May 2008.Copyright © 2008 by the American Urological Association, Inc.