Drupal-Bibcite31<style face="normal" font="default" size="100%">Frailty and comorbidity predict first hospitalisation after heart failure diagnosis in primary care: population-based observational study in England</style><style face="normal" font="default" size="100%">Frailty and comorbidity predict first hospitalisation after heart failure diagnosis in primary care: population-based observational study in England</style>