- Correspondence to Dr Kristine Bærøe, Department of Public Health and Primary Health Care, University of Bergen, Kalfarveien 31, P.O. Box 7804, 5020 Bergen 5020, Norway;
- Received December 20, 2014
- Revised June 24, 2015
- Accepted July 22, 2015
- First published August 12, 2015.
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