Cognitive Behavioral Performance of Untreated Depressed Patients with Mild Depressive Symptoms Li, Mi ; Zhong, Ning ; Lu, Shengfu ; Wang, Gang ; Feng, Lei ; Hu, Bin Abstract Publication: PLoS ONE Pub Date: January 2016 DOI: 10.1371/journal.pone.0146356 Bibcode: 2016PLoSO..1146356L