42. Correlations Between Oral Pre-exposure Prophylaxis Initiations and Policies, 2021 Bookmark Format Single study
44. Country Memberships in Selected Intergovernmental Organizations and Accession to Selected Regional and Global Treaty Regimes: Global, Country-Year Format, 1955-2010 Bookmark Format Single study
49. COVID-19 Government Response Tracker (University of Oxford - Blavatnik School of Government) Bookmark Format Series - ongoing