}
if (isbFields.getPatientGender() == null) {
missingFields.addMissingField("PatientGender", "The patient's gender must be provided");
}
if (isbFields.getPatientBirthDate() == null) {
missingFields.addMissingField("PatientBirthDate", "The patient's date of birth must be provided");
}
if (isbFields.getUsualGPODSCode() == null) {
missingFields.addMissingField("UsualGPODSCode", "The usual GP's ODS Code must be provided");
}
if (isbFields.getUsualGPOrgName() == null) {