title: Primary hyperoxaluria type 1 and urolithiasis in children: Report of three cases.
authors.affiliation: Department of Urology, Children's University Hospital, University of Cologne, Germany.
authors.forename: F J
authors.initials: FJ
authors.lastname: Portillo
authors.forename: B
authors.initials: B
authors.lastname: Hoppe
authors.forename: M
authors.initials: M
authors.lastname: Al Turki
authors.forename: R
authors.initials: R
authors.lastname: Vorreuther
authors.forename: U
authors.initials: U
authors.lastname: Querfeld
authors.forename: U H
authors.initials: UH
authors.lastname: Engelmann