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Table 1 Search Strategy

From: The outcome of control groups in clinical trials of conservative treatments for chronic mechanical neck pain: a systematic review

1 randomized controlled trial.pt.
2 controlled clinical trial.pt.
3 randomized controlled trials.sh.
4 random allocation.sh.
5 double blind method.sh.
6 single blind method.sh.
7 1 or 2 or 3 or 4 or 5 or 6
8 clinical trial.pt.
9 exp clinical trials/
10 (clin$ adj trial$).ti, ab.
11 ((singl$ or doubl$ or trebl$ or tripl$) adj (blind$ or mask$)).ti, ab.
12 placebos.sh.
13 Placebo$.ti, ab.
14 random$.ti, ab.
15 Research design.sh.
16 or/8–15
17 comparative study.sh.
18 exp evaluation studies/
19 follow up studies.sh.
20 prospective studies.sh.
21 (control$ or prospective$ or volunteer$).ti, ab.
22 or/17–21
23 7 or 16 or 22
24 neck pain.mp. or exp Neck Pain/
25 exp CERVICAL VERTEBRAE/
26 24 or 25
27 exp alternative medicine/
28 exp plants, medicinal/
29 exp plant oils/
30 exp plant extracts/
31 exp formularies, homeopathic/
32 ((complementary or unconventional or folk or alternative) adj (med$ or ther$ or treat$ or care)).ti, ab.
33 exp holistic health/
34 exp Physical Therapy Techniques/
35 (physical ther$ or physiother$).ti, ab.
36 exp osteopathy/or exp osteopathic medicine/
37 (chiropract$ or naturopath$ or osteopath$ or homeopath$ or acupunct$).ti, ab.
38 or/27–37
39 23 and 26 and 38
40 limit 39 to english language