Completeness and quality of comprehensive managed care data compared with fee‐for‐service data in national Medicaid claims from 2001 to 2019. - Samples, Hillary; Lloyd, Kristen; Ryali, Radha; Martins, Silvia S.; Cerdá, Magdalena; Hasin, Deborah; Crystal, Stephen; Olfson, Mark (Health Services Research, 2025)