/**
  * Patient Add Marketing Referral
  * Used to add a referral to Patient
  *
  * @param: BrightreeID, ReferralBrightreeID
  * 
  * @return: BrightreeID
  */
 public function PatientAddMarketingReferral($id)
 {
     $client = new SoapClient($this->wsdl, $this->connection);
     $response = $client->PatientAddMarketingReferral(array("BrightreeID" => $id));
     $responsearray = json_decode(json_encode($response), true);
     return $responsearray;
 }