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Table 1 Medline (PubMed) search strategy (* used as the wildcard character Truncating search terms for searching for all terms that begin with a word)

From: Herbal medicines for treating tic disorders: a systematic review of randomised controlled trials

#1 tic disorder [mh]
#2 Tourette’s syndrome [mh]
#3 1 or 2
#4 Medicine, African Traditional [mh]
#5 Medicine, Arabic [mh]
#6 Medicine, Ayurvedic [mh]
#7 Medicine, Kampo [mh]
#8 Medicine, Korean Traditional [mh]
#9 Medicine, Tibetan Traditional [mh]
#10 Medicine, Mongolian Traditional [mh]
#11 Herbal Medicine [mh]
#12 Phytotherapy [mh]
#13 Drugs, Chinese Herbal [mh]
#14 Plants, Medicinal [mh]
#15 Plant Extracts [mh]
#16 Ethnobotany [mh]
#17 Ethnopharmacology [mh]
#18 Plants [mh]
#19 Herb* [tiab]
#20 Any of 4–19
#21 3 and 20