Affiliation: | 1. Metropolia University of Applied Sciences, Helsinki, Finland, P.O. Box 4030, 00079 Metropolia, Finland;2. City of Vantaa, Asematie 7, 01300 Vantaa, Finland;3. Department of Nursing Science, University of Tartu, Estonia, Nooruse 9, 50411 Tartu, Estonia |