inheritance.1.cs

public class Patient
{
  protected string Name;
  protected MedicalRecords MedicalRecords;
  protected List<Surgery> ScheduledSurgeries;
}

inheritance.2.cs

public class PatientForSurgeon : Patient
{
  public string GetName() {
    return base.Name;
  }
  public MedicalRecords GetRecords() {
    return base.MedicalRecords;
  }
}

public class PatientForDeskWorker : Patient {
  public string GetName() {
    return base.Name;
  }
  public Surgery[] GetScheduledSurgeries() {
    return base.ScheduledSurgeries.ToArray();
  }
  public void ScheduleSurgery(Surgery s) {
    base.ScheduledSurgeries.Add(s);
  }
}

original.cs

public class Patient
{
  private string Name;
  private MedicalRecords MedicalRecords;
  private List<Surgery> ScheduledSurgeries;
  
  public MedicalRecords GetRecords() {
    return this.MedicalRecords;
  }
  public string GetName() {
    return this.Name;
  }
  public Surgery[] GetScheduledSurgeries() {
    return this.ScheduledSurgeries.ToArray();
  }
  public void ScheduleSurgery(Surgery s) {
    this.ScheduledSurgeries.Add(s);
  }
}

tangling.cs

public class Patient
{
  protected string Name;
  protected MedicalRecords MedicalRecords;
  protected List<Surgery> ScheduledSurgeries;
  
  public MedicalRecords GetRecords() {
    if (Context.View != "Surgeon") throw new ViewException();
    return this.MedicalRecords;
  }
  public string GetName() {
    return this.Name;
  }
  public Surgery[] GetScheduledSurgeries() {
    if (Context.View != "DeskWorker") throw new ViewException();
    return this.ScheduledSurgeries.ToArray();
  }
  public void ScheduleSurgery(Surgery s) {
    if (Context.View != "DeskWorker") throw new ViewException();
    this.ScheduledSurgeries.Add(s);
  }
}