TY - DATA T1 - Improving Methods for Linking Secondary Data Sources for Comparative Effectiveness Research (CER)/Patient-Centered Outcomes Research (PCOR) [Methods Study], United States, 2008-2019 AU - O'Brien, Sean M. PY - 2025 DO - 10.3886/ICPSR39614.v1 PB - Inter-university Consortium for Political and Social Research [distributor] ER -