Affiliation: | Department of Pediatrics, University of Ulm, D-7900 Ulm, Prittwitzstr. 43, West Germany;Department of Pediatrics, University of Munich, D-8000 München 2, Lindwurmstr. 4, West Germany;Department of Internal Medicine, University of Tübingen, D-7400 Tübingen, Otfried-Müller-Str. 10, West Germany;Max Planck Institute, D-8033 Martinsried bei München, Am Klopferspitz, West Germany |