Drupal-Bibcite31<style face="normal" font="default" size="100%">Systolic Blood Pressure Trajectory, Frailty, and All-Cause Mortality >80 Years of Age: Cohort Study Using Electronic Health Records</style><style face="normal" font="default" size="100%">Systolic Blood Pressure Trajectory, Frailty, and All-Cause Mortality >80 Years of Age: Cohort Study Using Electronic Health Records</style>