| Operator | Meaning |
|---|---|
| .tw | title or abstract |
| .kf | word in author provided keyword |
| .tw,kf | the term is found in the title, abstract or in an author provided keyword |
| * or $ | truncation (E.g., support OR supports OR supporting) |
| or/#-# | Refers to the lines that include words related to the search term (eg. or/1–10 [amputation] means that lines 1 or 2 or 3 or 4 or 5 or 6 or 7 or 8 or 9 or 10 include terms related to amputation) |
| adj# | the search term is within a specified number of words of the term (E.g. peer adj2 is within 2 words of the term support* (e.g., peer support OR supporting a peer)) |
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