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Table 2 Search strategy used in PubMed

From: Herbal medicine Shaofu Zhuyu decoction for primary dysmenorrhea: a systematic review protocol

Number Search items
1 Related to intervention 少腹逐瘀汤
2 Shaofu Zhuyu decoction
3 Shaofu Zhuyu formula
4 Shaofu Zhuyu tang
5 1 or 2–5
6 Related to disease Dysmenorrhea
7 Menstruation disturbances
8 Menstrual disorder
9 Pelvic pain
10 Painful menstruation
11 Painful period
12 Period pain
13 Primary dysmenorrhea
14 7 or 8–14
15 Related to study design Randomized controlled trial
16 Controlled clinical trial
17 Randomized
18 Placebo
19 Drug therapy
20 Randomly
21 Trial
22 Groups
23 #15 OR #16 OR #17 OR #18 OR #19 OR #20 OR #21 OR #22
24 Animals NOT humans
25 #23 NOT #25
  1. Any words containing this searching item will be searched. This search strategy will be suitable for other electronic databases