Our study centres on a particular type of eHealth technology, the electronic health record (EHR) portals, also called EHR patient portals [1,2,3,4].We can define an EHR portal as a web based application that combines an EHR system and a patient portal [1, 2, 5].EHR portals support patients in managing their own activities, thus making the use of the healthcare system more effective, not only ....