Wei, W., Yi, X., Ruan, J., Duan, X., & Luo, H. (2021). The efficacy of repetitive transcranial magnetic stimulation on emotional processing in apathetic patients with Parkinson's disease: A Placebo-controlled ERP study. Journal of affective disorders, 282, 776–785. https://doi.org/10.1016/j.jad.2020.12.099