Figure 1. Analysis workflow.
Diagrammatic summary of how data is collected and mapped against open access definitions using information from Unpaywall metadata.
Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.