Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
| Search terms | Limits applied | |
|---|---|---|
| 1. | Needl*.tw | Humans only Keyword searches limited to title/abstract/keyword fields |
| 2. | *Acupuncture therapy/ | |
| 3. | Acupuncture.tw | |
| 4. | Intramuscular stimulation.tw | |
| 5. | Sham.tw | |
| 6. | *Placebo effect/ | |
| 7. | *Placebos/ | |
| 8. | Placebo$1.tw | |
| 9. | #1 OR #2 OR #3 OR #4 | |
| 10. | #5 OR #6 OR #7 OR #8 | |
| 11. | #9 AND #10 | |
