9Judd LL, Rapaport MH, Paulus MP. Subsyndromal symptomatic depression: a new mood disorder [J]. J Clin Psychiat, 1994, 55 (4) : 18 - 28.
10Enns MW, Cox B J, Borger SC. Correlates of analogue and clinical depression: a further test of the phenomenological continuity hy- pothesis [ [J]. J Affect Disord, 2001,66(2 - 3) : 175 - 183.