Dr. Spiegal: Challenges in usability. in 2015 Cedars-Sinai allowed smartphone data to input into the EHR via Apple’s HealthKit framework. Out of nearly 80,000 invited patents, 499 connected (0.8%) = younger patients, few comorbidites, hospital employees. #ACR18 @Rheumnow https://t.co/HUPtbvGpVL