Affiliation: | Departments of Paediatrics, Aker Hospital, Oslo Norway;Departments of Paediatrics, The National Hospital, Oslo Norway;Departments of Microbiology, Aker Hospital and Institute of Pharmacy, University of Oslo Norway;Departments of Pathology, Mount Sinai School of Medicine, New York, USA;The Norwegian Radium Hospital, Oslo and Columbia University College of Physicians and Surgeons, New York, USA |