1. Acting professor, Department of Clinical Pathology, University of Kuopio and Section of Forensic Medicine, Department of Public Health, University of Tampere; senior lecturer, Department of Forensic Medicine, University of Helsinki. Kytösuontie II SF-00300 Helsinki FI.
2. Senior researcher, professor and senior researcher, respectively; HIV Laboratory, National Public Health Institute, Helsinki, US.
3. Senior lecturer; Department of Forensic Medicine, University of Turku, FI.
4. Senior lecturer; Department of Virology, University of Turku, FI.