1 Unipolar depression is another name for major depression.

2 In the clinical trial, 531 patients with unipolar depression received ECT three times a week until they either reached remission or completed 10 ECT sessions without remission.

3 Conclusion Unipolar depression patients' clinical cognition impediment, especially their unexplained various somatic symptoms may relate with function change in certain brain areas.

4 Objective:To explore the possible differences of genetic effects between the early onset and late onset unipolar depression.

5 Objective To investigate the association among tryptophan hydroxylase(TPH) gene A218C polymorphism, unipolar depression(UPD) and symptom phenotypes in Han nationality of Chinese.

6 Objective : To investigate the possibility of X - linked dominant genetic model in unipolar depression.