<listingField name="PatientID" displayName="PatientID" fieldExpression="PatientID" />
<listingField name="Age" displayName="Age" fieldExpression="Age" />
<listingField name="Gender" displayName="Gender" fieldExpression="Gender" />
<listingField name="Test Score" displayName="Test Score" fieldExpression="TestScore" />
<listingField name="City" displayName="City" fieldExpression="HomeCity->Name" />
<listingField name="Doctor" displayName="Doctor" fieldExpression="PrimaryCarePhysician->LastName" />