Search strategy used in the OVID MEDLINE database
| Number | Search terms |
|---|---|
| 1 | randomized controlled trial.pt. |
| 2 | controlled clinical trial.pt. |
| 3 | randomized.ab. |
| 4 | randomized.ab. |
| 5 | placebo.ab. |
| 6 | randomly.ab. |
| 7 | trial.ab. |
| 8 | groups.ab. |
| 9 | or 1–8 |
| 10 | exp psoriasis/ |
| 11 | psoriasis vulgaris. ti, ab. {Including Related Terms} |
| 12 | psora. ti, ab. {Including Related Terms} |
| 13 | or 10–12 |
| 14 | exp acupuncture therapy, or acupuncture |
| 15 | acupuncture. ti, ab. {Including Related Terms} |
| 16 | body acupuncture. ti, ab. {Including Related Terms} |
| 17 | auricular acupuncture. ti, ab. {Including Related Terms} |
| 18 | electroacupuncture. ti, ab. {Including Related Terms} |
| 19 | fire needling. ti, ab. {Including Related Terms} |
| 20 | warm needling, ti, ab. {Including Related Terms} |
| 21 | catgut embedding, ti, ab. {Including Related Terms} |
| 22 | pricking-cupping, ti, ab. {Including Related Terms} |
| 23 | slide-cupping, ti, ab. {Including Related Terms} |
| 24 | or 14–23 |
| 25 | 9 and 13 and 24 |
This search strategy will be modified as required for other electronic databases.