Electronic Health Record Portal Messages and Interactive Voice Response Calls to Improve Rates of Early Season Influenza Vaccination: Randomized Controlled Trial.
Jessica G WijesundaraMayuko Ito FukunagaJessica OgarekBruce A BartonLloyd D FisherPeggy PreusseDevi SundaresanLawrence D GarberKathleen M MazorSarah L CutronaPublished in: Journal of medical Internet research (2020)
ClinicalTrials.gov NCT02266277; https://clinicaltrials.gov/ct2/show/NCT02266277.