Table 1.

Examples of automatic mapping of phrases in queries submitted to Entrez

Original query	Query after automatic mapping process
breast cancer inhibitor	(“Clin Breast Cancer”[Journal] OR “Breast Cancer”[Journal] OR (“breast”[All Fields] AND “cancer”[All Fields]) OR “breast cancer”[All Fields]) AND inhibitor[All Fields]
cancer inhibitor breast	(“Cancer”[Organism] OR cancer[All Fields]) AND inhibitor[All Fields] AND breast[All Fields]
human rab5a	(“Homo sapiens”[Organism] OR human[All Fields]) AND rab5a[All Fields]
bos polymerase gene	(“Bos”[Organism] OR bos[All Fields]) AND polymerase[All Fields] AND gene[All Fields]
bos a polymerase gene	bos a[Author] AND polymerase[All Fields] AND gene[All Fields]