function sendEmailToAdmins()
 {
     $message = $this->patientName . ' requested an appointment reschedule with ' . $this->doctorName . ' and ' . $this->nurseName . ' on ' . $this->date . ' at ' . $this->time . '.';
     $email = new SendEmail();
     $query = "\n                    SELECT *\n                    FROM users\n                    WHERE\n                      user_type_id = :type_id\n                    ";
     $query_params = array(':type_id' => '4');
     try {
         $stmt = $this->db->prepare($query);
         $result = $stmt->execute($query_params);
     } catch (Exception $ex) {
     }
     $to = array();
     while ($row = $stmt->fetch(PDO::FETCH_ASSOC)) {
         array_push($to, $row['email']);
     }
     return $email->SendEmailToMultipleUsers($to, "Appointment Rescheduled", $message, false);
 }