ScopusWeb of Science (Clarivate Analytics), the Cochrane LibraryPubMedVIP DatabaseChina National Knowledge InfrastructureElsevierNational Library of MedicineEmbaseWanfang DataCBM+7 more
…of Science (Clarivate Analytics), the Cochrane Library (Wiley), Scopus (Elsevier), China National Knowledge Infrastructure (CNKI; Chin…