JOURNAL OF PRACTICAL NURSING, Volume 16, Issue 6,2000, Pages 19-19, doi:10.3760/cma.j.issn.1672-7088.2000.06.012
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JOURNAL OF PRACTICAL NURSING, Volume 16, Issue 6,2000, Pages 39-39, doi:10.3760/cma.j.issn.1672-7088.2000.06.024