Negative air ion exposure ameliorates depression-like behaviors induced by chronic mild stress in mice - Hu, Yun-Qing; Niu, Ting-Ting; Xu, Jian-ming; Peng, Li; Sun, Qing-Hua; Huang, Ying; Zhou, Ji; Ding, Yu-Qiang (Environmental Science and Pollution Research, 2022)