Accounting for Twins and Other Multiple Births in Perinatal Studies Conducted Using Healthcare Administration DataJan 1, 2024·Jeremy P Brown,Paige L Williams,Krista F Huybrechts,Sonia Hernández-Dı́az,Others· 0 min read CiteTypeJournal articlePublicationmedRxivLast updated on Jan 1, 2024 Estimated number of lives directly saved by COVID-19 vaccination programs in the WHO European Region, December 2020 to March 2023 Jan 1, 2024 →