public void OpenPatient()
 {
     try
     {
         var document = DocumentManager.Get <PatientBiographyDocument>(_selectedProfile.PatientProfileRef);
         if (document == null)
         {
             document = new PatientBiographyDocument(_selectedProfile, this.Host.DesktopWindow);
             document.Open();
         }
         else
         {
             document.Open();
         }
     }
     catch (Exception e)
     {
         ExceptionHandler.Report(e, this.Host.DesktopWindow);
     }
 }