A PHR contains the same types of information as EHRs diagnoses, medications, immunisations, family medical histories, and provider contact information but is designed to be set up, accessed and managed by patients. Patients can use PHRs to maintain and manage their health information in a private, secure and confidential environment. PHRs can include information from a variety of sources including clinicians, home monitoring devices and patients themselves (ONC definition). Some patient portals have functions that are equivalent to PHRs.