List and define all variables for which data were sought (e.g., PICOS, funding sources) and any assumptions and simplifications made.
PRISMA 2009 Checklist Section/topic # Checklist item Reported on page # TITLE Title 1 Identify the report as a systematic review, meta-analysis, or both. ABSTRACT Structured summary 2 Provide a structured summary including, as applicable: background; objectives; data sources; study eligibility criteria, participants, and interventions; study appraisal and synthesis methods; results; limitations; conclusions and implications […]
