Table 1 Search string used for PubMed

PubMed

("withdrawing treatment"[Title/Abstract: ~ 2] OR"refuse treatment"[Title/Abstract: ~ 2] OR"sustaining treatment"[Title/Abstract: ~ 2] OR"support treatment"[Title/Abstract: ~ 2] OR"prolong*"[Title/Abstract] OR"palliat*"[Title/Abstract] OR"Terminal Care"[Title/Abstract: ~ 2] OR"life threatening"[Title/Abstract: ~ 2] OR"life limiting"[Title/Abstract: ~ 2] OR"euthanasi*"[Title/Abstract] OR"assisted suicide"[Title/Abstract: ~ 2] OR"assisted death"[Title/Abstract: ~ 2] OR"assisted dying"[Title/Abstract: ~ 2] OR"Right to Die"[Title/Abstract: ~ 2] OR"final exit"[Title/Abstract: ~ 2] OR"self-directed death"[Title/Abstract: ~ 2] OR"rational suicide"[Title/Abstract: ~ 2] OR"advance care planning"[Title/Abstract: ~ 2] OR"Palliative Care"[MeSH Terms] OR"Withholding Treatment"[MeSH Terms] OR"Euthanasia"[MeSH Terms] OR"suicide, assisted"[MeSH Terms] OR"Right to Die"[MeSH Terms] OR"Refusal to Treat"[MeSH Terms] OR"Terminally Ill"[MeSH Terms] OR"Terminal Care"[MeSH Terms] OR"End-of-life"[Title/Abstract] OR"EoL"[Title/Abstract] OR"surrogate decision")

AND

("preferenc*"[Title/Abstract] OR"wish*"[Title/Abstract] OR"choice*"[Title/Abstract] OR"perspective*"[Title/Abstract] OR"belie*"[Title/Abstract] OR"attitude*"[Title/Abstract] OR"opinion*"[Title/Abstract] OR"perception*"[Title/Abstract] OR"view*"[Title/Abstract] OR"desire*"[Title/Abstract] OR"Choice Behavior"[MeSH Terms] OR"Attitude"[MeSH Terms] OR"Perception"[MeSH Terms] OR"Intention"[MeSH Terms])

AND

("systematic literature"[Title/Abstract: ~ 1] OR"systematic Medline"[Title/Abstract: ~ 2] OR"systematic PubMed"[Title/Abstract: ~ 2] OR"systematic review"[Title/Abstract: ~ 1] OR"systematic reviews"[Title/Abstract: ~ 1] OR"systematic search"[Title/Abstract: ~ 1] OR"systematic searches"[Title/Abstract: ~ 1] OR"systematical review"[Title/Abstract: ~ 1] OR"systematical reviews"[Title/Abstract: ~ 1] OR"systematically identified"[Title/Abstract: ~ 1] OR"systematically review"[Title/Abstract: ~ 1] OR"systematically reviewed"[Title/Abstract: ~ 1] OR"umbrella review"[Title/Abstract: ~ 1] OR"umbrella reviews"[Title/Abstract: ~ 1])

AND

("france"[Title/Abstract] OR"french"[Title/Abstract] OR ("Spain"[Title/Abstract] OR"Spanish"[Title/Abstract]) OR ("Germany"[Title/Abstract] OR"German"[Title/Abstract]) OR ("Italy"[Title/Abstract] OR"italian"[Title/Abstract]) OR ("Belgium"[Title/Abstract] OR"belgian"[Title/Abstract]) OR ("austria"[Title/Abstract] OR"austrian"[Title/Abstract]) OR ("poland"[Title/Abstract] OR"polish"[Title/Abstract]) OR ("switzerland"[Title/Abstract] OR"swiss"[Title/Abstract]) OR ("netherlands"[Title/Abstract] OR"dutch"[Title/Abstract]) OR ("Greece"[Title/Abstract] OR"Greek"[Title/Abstract]) OR ("Finland"[Title/Abstract] OR"Finnish"[Title/Abstract]) OR ("Norway"[Title/Abstract] OR"norwegian"[Title/Abstract]) OR ("Sweden"[Title/Abstract] OR"swedish"[Title/Abstract]) OR ("Latvia"[Title/Abstract] OR"latvian"[Title/Abstract]) OR ("Estonia"[Title/Abstract] OR"estonian"[Title/Abstract]) OR ("Lithuania"[Title/Abstract] OR"lithuanian"[Title/Abstract]) OR ("portugal"[Title/Abstract] OR"portuguese"[Title/Abstract]) OR ("Romania"[Title/Abstract] OR"romanian"[Title/Abstract]) OR ("bulgaria"[Title/Abstract] OR"bulgarian"[Title/Abstract]) OR ("hungary"[Title/Abstract] OR"hungarian"[Title/Abstract]) OR ("united kingdom"[Title/Abstract] OR"british"[Title/Abstract] OR"UK"[Title/Abstract]) OR ("Scotland"[Title/Abstract] OR"scottish"[Title/Abstract]) OR ("Wales"[Title/Abstract] OR"Welsh"[Title/Abstract] OR"europ*"[Title/Abstract]))

AND ("humans"[MeSH Terms])