Inclusion criteria
Search methods
Search sources
Electronic databases
- MEDLINE/PubMed(From inception to December 12, 2025)
- EMBASE*(From inception to December 09, 2025)
- CINAHL*(From inception to December 09, 2025)
- LILACS(From inception to December 09, 2025)
- IRIS WHO(From inception to August 04, 2025)
- PsycINFO*(From inception to June 10, 2025)
- Scopus*(From inception to December 09, 2025)
Preprint servers
- medRxiv/bioRxiv(From inception to December 09, 2025)
- SSRN(From inception to December 12, 2025)
- ResearchSquare(From inception to December 12, 2025)
Trial Registries
- ClinicalTrials.gov(From inception to December 11, 2025)
- ISRCTN registry(From inception to December 12, 2025)
- EU Clinical Trials Register(From inception to December 04, 2025)
- Iranian Registry of Clinical Trials(From inception to April 30, 2025)
- Australian New Zealand Clinical Trials Registry(From inception to December 11, 2025)
- Chinese Clinical Trial Register(No data available)
- Brazilian Registry of Clinical Trials(No data available)
- Pan African Clinical Trials Registry(No data available)
- Lebanese Clinical Trials Registry(No data available)
- Registro Público Cubano de Ensayos Clínicos(No data available)
- Overview of Medical Research in the Netherlands(No data available)
- Clinical Trials Peruvian Registry(No data available)
- Korean Clinical Trials Database(No data available)
- UMIN Clinical Trials Registry(From inception to October 02, 2025)
- Japan Primary Registry Network(No data available)
- Japan Pharmaceutical Information Center(No data available)
- German Clinical Trials Register(No data available)
- Clinical Trials Registry - India(No data available)
- Sri Lanka Clinical Trials Registry(No data available)
- Thai Clinical Trials Registry(No data available)
- International Traditional Medicine Clinical Trial Registry(No data available)
- Clinical Trials Information System(No data available)