111. Polity V: Political Regime Characteristics and Transitions, 1800-2018 Bookmark Format Series - ongoing
113. Premise Child Health COVID-19 Health Services Disruption Survey (2020-2021) Bookmark Format Series - completed
114. Premise General Population COVID-19 Health Services Disruption Survey (2020-2021) Bookmark Format Series - completed
115. Premise Infant and Maternal Health COVID-19 Health Services Disruption Survey (2020-2021) Bookmark Format Series - completed
116. Premise Women’s Health COVID-19 Health Services Disruption Survey (2020-2021) Bookmark Format Series - completed
117. Pre-Vaccine Era COVID-19 Infection Fatality Ratio Estimates by Age, Time, and Location 2020-2021 Bookmark Format Single study