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. 2022 May 14;12:04047. doi: 10.7189/jogh.12.04047

Table 2.

Search Expressions for Step 2

Step 2 Search Expression
Blockchain AND Migrants
 Blockchain AND Refugees
Blockchain AND (Migrants OR Refugees)
 Blockchain AND Refugees AND Identity
Blockchain AND Migrants AND Identity
 Blockchain AND (Migrants OR Refugees) AND Identity
Blockchain AND Migrants AND HER
 Blockchain AND Refugees AND EHR
Blockchain AND (Migrants OR Refugees) AND EHR
 Blockchain AND (Refugees OR Migrants) AND PHR
Blockchain AND migrants AND PHR Blockchain AND (Migrants OR Refugees) AND (EHR OR PHR)