The terms<unk> ,<unk>  patient record (EPR) and EMR have often been used interchangeably, but differences between the models are now being defined. The<unk>  <unk>  is a more longitudinal collection of the<unk><unk>  information of individual patients or populations. The EMR, in contrast, is the patient record created by providers for specific encounters in hospitals and ambulatory environments and can serve as a data source for an<unk> . In contrast, a personal<unk>  record (PHR) is an<unk>  application for recording personal medical data that the individual patient controls and may make available to<unk>  providers.
Electronic health record
Personal health record
Clinical decision support system
Hospital information system
Procedure code
GPnotebook
Disease registry
Patient tracking system