Terms and Synonyms Searched:
| Terms | Search Results* | Entire Database** |
|---|---|---|
| Synonyms | ||
| opioid use | 411 studies | 2,168 studies |
| narcotics use | 29 studies | 265 studies |
| Chronic Pain | 339 studies | 4,700 studies |
| Long-lasting pain | -- | 16 studies |
| Pain | 411 studies | 68,039 studies |
| Painful | 18 studies | 4,868 studies |
| AChE | -- | 604 studies |
| Dolor | -- | 230 studies |
| Chronic | 411 studies | 50,500 studies |
| -- | No studies found |
| * | Number of studies in the search results containing the term or synonym |
| ** | Number of studies in the entire database containing the term or synonym |