CHINESE JOURNAL OF PRACTICAL NURSING, Volume 23, Issue 18,2007, Pages 42-43, doi:10.3760/cma.j.issn.1672-7088.2007.18.025
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CHINESE JOURNAL OF PRACTICAL NURSING, Volume 23, Issue 18,2007, Pages 75, doi:10.3760/cma.j.issn.1672-7088.2007.18.005
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