1. Department of Nursing Science, University of Eastern Finland, Kuopio, Finland
2. Institute of Public Health and Clinical Nutrition, School of Medicine, University of Eastern Finland, Kuopio, Finland
3. Institute of Dentistry, School of Medicine, University of Eastern Finland, Kuopio, Finland
4. Department of Oral and Maxillofacial Diseases, Kuopio University Hospital, Kuopio, Finland
5. Department of Medicine, Endocrinology and Clinical Nutrition, Kuopio University Hospital, Kuopio, Finland