1. Laboratory Services, Ryhov County Hospital, Jönköping, Sweden,
2. Division of Drug Research, Department of Medical and Health Sciences, Linköping University, Linköping, Sweden,
3. Department of Surgery, Ryhov County Hospital, Jönköping, Sweden,
4. Department of Clinical Microbiology, Ryhov County Hospital, Jönköping, Sweden, and
5. Natural Science and Biomedicine, University College of Health Sciences, Jönköping, Sweden.