Corrigendum: BDNF val66met Polymorphism Impairs Hippocampal Long-Term Depression by Down-Regulation of 5-HT3 Receptors - Hao, Rui; Qi, Yu; Hou, Dong-Ni; Ji, Yuan-Yuan; Zheng, Chun-Yan; Li, Chu-Yu; Yung, Wing-Ho; Lu, Bai; Huang, Ying (Frontiers in Cellular Neuroscience, 2017)