Gold standard study for Clinical research is: (A) Randomised double-blind trial, (B) Systematic meta-analysis, (C) Ecological study, (D) Retrospective cohort study
Answer is B. • Meta-analysis (Highest clinical relevance: GOLD STANDARD)
• Systematic review
• Cohort study
• Case control study
• Case series
• Case report
• Ideas, Editorials, Opinions
• Animal research
• In-vitro (test-tube) research (Lowest clinical relevance)