%0 Journal Article %K Covid-19 %K COVID-19 vaccines %K electronic heath records %K epidemiology %K inverse probability of treatment weighting %K Matching %K methods research %K overlap weighting %K propensity scores %K vaccine effectiveness %B Int J Epidemiol %D 2023 %G eng %M 37833846 %R 10.1093/ije/dyad138 %T Observational methods for COVID-19 vaccine effectiveness research: an empirical evaluation and target trial emulation %7 2023/10/14 %@ 0300-5771