- Greater than or equal to 18 years.
- Consecutive general internal medical outpatients attending the selected general
hospitals in the investigate days(Department of neurology, gastrointestinal,
cardiology and gynecology).
- Informed consent obtained for all patients who will undergo a standardized diagnostic
assessment by specialized psychiatrists.
- Patients who have been screened on a previous visit.
- Patients who are unable to complete the survey because of mental or physical