Eight electronic databases including Embase via Ovid, MEDLINE via Ovid, Cochrane, PubMed, AMED, PsycINFO, SCOPUS and EBSCOHost using the following search terms: lavender OR lavandula OR alhucema OR aspic OR lavandin OR lavender essential oil OR lavender oil OR lavandin oil OR aspic oil OR lavender extract OR Silexan OR Lasea OR Kalms Lavender One-A-Day OR CalmAid OR MS 1265 OR linalool OR linalyl acetate AND anxiety.
All the relevant papers were identified and imported to an EndNote file to create a combined library. Duplicate records were removed, where appropriate. Title and abstracts were screened by two authors independently and disagreements were resolved through discussions. Full-texts were downloaded and considered for inclusion based on the inclusion/exclusion criteria described below. Also, we manually reviewed the references of the included studies to identify other relevant studies. Additional details about the studies identified are shown in Fig. 1.
PRISMA flow diagram.
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