Chinese herbal formula shen-ling-bai-zhu-san to treat chronic gastritis: Clinical evidence and potential mechanisms

Table 1 Search strategy

Number	Search terms
1	Mesh descriptor (Medicine, Traditional) explode all trees
2	(Medicine, Chinese Traditional*): ti,ab,kw
3	Mesh descriptor(Drugs, Chinese Herbal) explode all trees,
4	((Chinese Drugs, Plant*) or (Chinese Herbal Drugs*) or (Herbal Drugs, Chinese*) or (Plant Extracts, Chinese*) or (Chinese Plant Extracts*) or(Extracts, Chinese Plant*)): ti,ab,kw
5	Mesh descriptor (shen-ling-bai-zhu) explode all trees
6	((shen-ling-bai-zhu powder*) or (shen-ling-bai-zhu formula*) or (shen-ling-bai-zhu decoction*) or (shen-ling-bai-zhu decoction*) or (Shen-ling-bai-zhu powder*) or (Shen-ling-bai-zhu formula*) or (Shen-ling-bai-zhu formula*)): ti,ab,kw
7	Or 1-6
8	Mesh descriptor: (Chronic gastritis) explode all trees
9	((Chronic gastritis*) or (Digestive System Diseases*) or (Gastrointestinal Diseases*) or (Gastroenteritis*) or (Gastritis*) or (Chronic, gastritis*)): ti, ab, kw
10	Or 8-9
11	Mesh descriptor: (randomized controlled trials) explode all trees
12	(random*) or (randomly*) or (allocation*) or (random allocation*) or (placebo*) or (double blind*) or (clinical trials*) or (randomized control trial*) or (RCT*) or (controlled clinical trials*): ti, ab, kw
13	Or: 11-12
14	7 and 10 and 13