- Correspondence to Gunnhild Jakobsen, European Palliative Care Research Centre (PRC), Department of Clinical and Molecular Medicine, Faculty of Medicine and Health Sciences, NTNU, Norwegian University of Science and Technology, Trondheim 7491, Norway;
- Received July 7, 2017
- Revision received June 7, 2018
- Accepted July 4, 2018
- First published July 17, 2018.
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