Consider the following scenario: Patients are seen by physicians either in hospitals or clinics. Each patient visit to a clinic or hospital generates a physician encounter. Each patient visit may generate a referral to a laboratory for further testing.

To keep track of this information, you are required to design and create a data model in the form of an entity-relationship diagram. You may include the following entities in your solution: Patient, PatientVisit, LabOrder. Explain the entity-relationship diagram in your own words. Describe the entities, their purpose and the reason for each attribute.