1. Department of Nursing Science, Faculty of MedicineUniversity of Turku Turku Finland
2. Department of Nursing Science, Faculty of Health SciencesUniversity of Eastern Finland Kuopio Finland
3. Department of Comprehensive Development Nursing, Graduate School of Health SciencesHokkaido University Sapporo Hokkaido Japan
4. Institute of Public Health and Clinical NutritionUniversity of Eastern Finland Kuopio Finland