BMJ Open. 2018 Mar 1;8(3):e015187.
doi: 10.1136/bmjopen-2016-015187. PubMed PMID: 29500198; PubMed Central PMCID:
PMC5855398.
Lou S, Lv H, Li Z, Zhang L, Tang P.
BMJ Open. 2018 Mar 1;8(3):e015187.
doi: 10.1136/bmjopen-2016-015187. PubMed PMID: 29500198; PubMed Central PMCID:
PMC5855398.
Lou S, Lv H, Li Z, Zhang L, Tang P.