Use AND to combine your concepts, e.g., hospitals AND revenue (AND must be in caps)
Use OR to combine synonyms, related terms, e.g., nursing homes OR nursing facilities (OR must be in caps)
Parentheses allow complex queries to be layered, e.g., revenue streams AND (nursing homes OR nursing facilities)
To search for an exact phrase, place the phrase in quotation marks, e.g., "skilled nursing facilities"
On the results list page, on the left-hand side, chose under LIMIT TO, "peer-revewed journals" and under RESOURCE TYPE choose "Article"