Affiliation: | a Departments of Pathology, Gothenburg University, Sahlgren's Hospital, S-413 45, Götenberg, Sweden b Department of Clinical Chemistry, Gothenburg University, Sahlgren's Hospital, S-413 45, Götenborg, Sweden c Department of Paediatrics, Gothenburg University, East Hospital, S-416 85, Göteborg, Sweden d Fachbereich Chemie, Philipps-Universität, D-3550, Marburg, Germany |