| Affiliation: | 1. University of Helsinki Medical Faculty, Helsinki and Principal Lecturer, Laurea University of Applied Sciences, , Vantaa, Finland;2. Metropolia University of Applied Sciences, , Helsinki, Finland;3. Department of Primary Health Care, University of Helsinki, , Helsinki, Finland;4. Department of Infectious Disease, Surveillance and Control, Epidemiologic Surveillance and Response Unit, Finnish Hospital Infection Program (SIRO), National Institute for Health and Welfare (THL), , Helsinki, Finland |
