China Journal of Modern Medicine, Volume 21, Issue 31,2011, Pages 3872-3875,3880, doi:10.3969/j.issn.1005-8982.2011.31.007
China Journal of Modern Medicine, Volume 21, Issue 31,2011, Pages 3890-3893, doi:10.3969/j.issn.1005-8982.2011.31.011
China Journal of Modern Medicine, Volume 21, Issue 31,2011, Pages 3928-3931, doi:10.3969/j.issn.1005-8982.2011.31.021
China Journal of Modern Medicine, Volume 21, Issue 31,2011, Pages 3907-3911, doi:10.3969/j.issn.1005-8982.2011.31.015