- Correspondence to Dr Yanfeng Dai, College of life science, Inner Mongolia University, 235 West Univ. Road, Hohhot, Inner Mongolia 010021, China; ; Mr Shu Zhang, Department of Pathology, Affiliated Hospital of Nantong University, 20 Xisi Road, Nantong, Jiangsu 226001, China;
- Received August 19, 2019
- Revised April 7, 2020
- Accepted April 10, 2020
- First published May 13, 2020.
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