PRISMA 2020 flow
Native PRISMA 2020 systematic-review flow — and the only one that checks the arithmetic the standard is made of. A PRISMA figure exists so that every record entering a review is accounted for on its way out, which makes it an arithmetic claim: the engine balances all four stages (identification, screening, retrieval, eligibility), reports the exact count of records that vanished and where, draws the failing stage's arrow in red, and marks a stage it could not balance as a gap naming the missing term rather than passing it.

In the same space
Most users come to PRISMA 2020 flow from PRISMA online tools or Hand-drawn review flow diagrams. flowss runs this engine in the browser — no install, shareable via URL, exportable to PNG / SVG / PDF / source.
Syntax at a glance
db_records 850
duplicates 230
title_screened 660
fulltext_assessed 228
studies_included 75Paste this in the Studio code pane to see PRISMA 2020 flow render live. The full grammar is at the upstream-docs link above.
Sample templates
All 20 →Sample PRISMA 2020 flow for a vaccine effectiveness lit review.
Lit-review flow for telehealth-delivered CBT.
Environmental science systematic review template.
EdTech effectiveness review.
Starter PRISMA template with placeholder numbers.
The one to copy. A review that searched databases, registers and citation lists, removed duplicates and automation-excluded records, screened and retrieved, excluded at eligibility with three named reasons, and distinguishes the reports it included from the studies those reports describe. All four stages balance to the digit, the funnel descends, and every one of the eight checks says what it covered. Reports clean.
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