Journal of Capital Medical University ›› 2017, Vol. 38 ›› Issue (3): 475-477.doi: 10.3969/j.issn.1006-7795.2017.03.028

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  • Received:2017-01-10 Online:2017-05-21 Published:2017-06-14
  • Supported by:
    This study was supported by the Beijing Municipal Health System Academic Leaders of High-Level Health Personnel Program (2011-2-28), the Specialized Research Fund for the Doctoral Program of Higher Education of China (20111107110001).