Contents [hide]
1 Signs and symptoms
1.1 Related disorders
2 Diagnosis
2.1 Criteria
3 Causes
3.1 Biological
3.2 Social
4 Treatment
4.1 Psychotherapy
4.2 Medication
4.3 Alternative medicine
5 Epidemiology
6 History
6.1 Etymology
6.2 Before the 20th century
6.3 20th century
7 See also
8 References