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Long, Hua; Wang, Hongbin; Zhao, Chenguang; Duan, Qiang; Feng, Feng; Hui, Nan; Mao, Li; Liu, Huiling; Mou, Xiang; Yuan, Hua . (2018). Effects of combining high- and low-frequency repetitive transcranial magnetic stimulation on upper limb hemiparesis in the early phase of stroke. Restorative Neurology and Neuroscience, 36(1), 21–30. doi:10.3233/RNN-170733 
An interview with Sci-Hub Founder Alexandra Elbakyan,Who exactly should pay for academic research