Have you experienced any depressive symptoms over the past two weeks? Do you think you could be suffering from clinical depression? If so, you might want to consider filling out a brief Patient Health ...

Pedrelli P, Blais MA, Alpert JE, Shelton RC, Walker WSW, Fava M. Reliability and Validity of the Symptoms of Depression Questionnaire (SDQ). CNS Spectrums (in press).