public IActionResult Get(string parametersString)
        {
            OperationResult operationResult = new OperationResult();

            FairfieldAllergeryRepository fairfieldAllergeryRepository = new FairfieldAllergeryRepository();

            operationResult = fairfieldAllergeryRepository.GetPatients(parametersString);

            if (operationResult.Success)
            {
                return(Ok((IEnumerable <Patient>)operationResult.Patient));
            }
            else
            {
                return(Content(HttpStatusCode.NotFound.ToString(), operationResult.ErrorMessage));
            }
        }