A thorough search was conducted in the databases including AMED, EMBASE, Cochrane Database of Systematic Reviews, and MEDLINE without date restrictions. 
AMED
A thorough search was conducted in the databases including AMED, EMBASE, Cochrane Database of Systematic Reviews, and MEDLINE without date restrictions. 
EMBASE
A thorough search was conducted in the databases including AMED, EMBASE, Cochrane Database of Systematic Reviews, and MEDLINE without date restrictions. 
Cochrane Database of Systematic Reviews
A thorough search was conducted in the databases including AMED, EMBASE, Cochrane Database of Systematic Reviews, and MEDLINE without date restrictions. 
MEDLINE