Table 1. Showing search results using keywords, anemia, dementia, cognitive functions, Alzheimer disease, and low hemoglobin.

Keywords	Database	Results
Anemia	PubMed	47,322
Dementia	PubMed	75,095
Cognitive functions	PubMed	122,866
Alzheimer disease	PubMed	53,248
Low hemoglobin	PubMed	10,524