https://bmcpalliatcare.biomedcentral.com/articles/10.1186/s12904-018-0330-4
https://bmcpalliatcare.biomedcentral.com/articles/10.1186/s12904-018-0321-5
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https://bmcpalliatcare.biomedcentral.com/articles/10.1186/s12904-018-0331-3
https://bmcpalliatcare.biomedcentral.com/articles/10.1186/s12904-018-0336-y
https://bmcpalliatcare.biomedcentral.com/articles/10.1186/s12904-018-0327-z
https://bmcpalliatcare.biomedcentral.com/articles/10.1186/s12904-018-0325-1
https://bmcpalliatcare.biomedcentral.com/articles/10.1186/s12904-018-0323-3
https://bmcpalliatcare.biomedcentral.com/articles/10.1186/s12904-018-0328-y
https://bmcpalliatcare.biomedcentral.com/articles/10.1186/s12904-018-0326-0
https://bmcpalliatcare.biomedcentral.com/articles/10.1186/s12904-018-0333-1
https://bmcpalliatcare.biomedcentral.com/articles/10.1186/s12904-018-0324-2
https://bmcpalliatcare.biomedcentral.com/articles/10.1186/s12904-018-0334-0