public IEnumerable <Therapy> GetTherapyByPatient(Patient patient)
{
List <Therapy> retVal = new List <Therapy>();
IEnumerable <Diagnosis> diagnosisList = _diagnosisCSVRepository.GetAllDiagnosisForPatient(patient);
foreach (Diagnosis diagnosis in diagnosisList)
{
retVal.AddRange(diagnosis.Therapies);
}
return(retVal);
}