Drupal-Bibcite31<style face="normal" font="default" size="100%">Using big data from health records from four countries to evaluate chronic disease outcomes: a study in 114 364 survivors of myocardial infarction</style><style face="normal" font="default" size="100%">Using big data from health records from four countries to evaluate chronic disease outcomes: a study in 114 364 survivors of myocardial infarction</style>