CHINESE JOURNAL OF MODERN NURSING, Volume 15, Issue 7,2009, Pages 693-694, doi:10.3760/cma.j.issn.1674-2907.2009.07.051
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CHINESE JOURNAL OF MODERN NURSING, Volume 15, Issue 7,2009, Pages 608, doi:10.3760/cma.j.issn.1674-2907.2009.07.055
CHINESE JOURNAL OF MODERN NURSING, Volume 15, Issue 7,2009, Pages 681, doi:10.3760/cma.j.issn.1674-2907.2009.07.042