- Correspondence to Dr Linda Björkhem-Bergman, Department of Palliative Medicine and Advanced Medical Home Care, ASIH Långbro Park, Bergtallsvägen 12, Älvsjö 12559, Sweden;
- Received May 6, 2015
- Revision received December 21, 2015
- Accepted March 30, 2016
- First published April 15, 2016.
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