81. OECD-UNSD Multinational Enterprise Information Platform Bookmark Format Data archive or collection
82. Oxford Supertracker The Global Directory for COVID Policy Trackers and Surveys Bookmark Format Data archive or collection
86. Polity V: Political Regime Characteristics and Transitions, 1800-2018 Bookmark Format Series - ongoing
88. Pre-Vaccine Era COVID-19 Infection Fatality Ratio Estimates by Age, Time, and Location 2020-2021 Bookmark Format Single study