在Pubmed数据库中输入high Blood pressure,系统将转换成检索策略:"hypertension"[MeSH Terms] OR "hypertension"[All Fields] OR ("high"[All Fields] AND "blood"[All Fields] AND "pressure"[All Fields]) OR "high Blood pressure"[All Fields],该功能被称为( )
在Pubmed数据库中输入high Blood pressure,系统将转换成检索策略:"hypertension"[MeSH Terms] OR "hypertension"[All Fields] OR ("high"[All Fields] AND "blood"[All Fields] AND "pressure"[All Fields]) OR "high Blood pressure"[All Fields],该功能被称为( )