- Correspondence to Dr Pei-Lan Zhang, Department of Neurology, Tianjin Huanhu Hospital, Jinnanqu, Tianjin 300350, P.R. China; and Dr Pedro Fernandez-Funez, Department of Biomedical Sciences, University of Minnesota School of Medicine-Duluth Campus, 1035 University Drive, Duluth, 55812 MN, USA;
- Received 9 September 2017
- Revised 23 October 2017
- Accepted 28 October 2017
- Published online 18 November 2017.
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