Affiliation: | Departments of Internal Medicine, Hospital 'de Weezenlanden', Postbus 10500, 8000 GM Zwolle, The Netherlands;Department of Laboratory of Medical Microbiology, Hospital 'de Weezenlanden', Postbus 10500, 8000 GM Zwolle, The Netherlands;Department of Intensive Care Medicine, Hospital 'de Weezenlanden', Postbus 10500, 8000 GM Zwolle, The Netherlands |