* | asterisk | to truncate words at their root or stem |
diabet* diabetes, diabetic, diabetics |
" " | quotation marks | to enclose a phrase or name | "heart failure" |
OR | to connect related terms |
(cardiac OR cardiovascular) (education OR prevent* OR treat*) (nurse OR nursing) |
|
AND | to combine multiple facets | diabet* AND (cardiac OR cardiovascular) |