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Authors: Xuerui Li, Rongrong Yang, Wenzhe Yang, Hui Xu, Ruixue Song, Xiuying Qi, Weili Xu
Journal title: BMJ Open
Journal number: 11/6
Journal publisher: BMJ Publishing Group
Published year: 2021
Published pages: e048030
DOI identifier: 10.1136/bmjopen-2020-048030
ISSN: 2044-6055