Drupal-Bibcite0<style face="normal" font="default" size="100%">Identifying subtypes of heart failure from three electronic health record sources with machine learning: an external, prognostic, and genetic validation study</style><style face="normal" font="default" size="100%">Identifying subtypes of heart failure from three electronic health record sources with machine learning: an external, prognostic, and genetic validation study</style>