CHINESE JOURNAL OF MODERN NURSING, Volume 17, Issue 14,2011, Pages 1712-1713, doi:10.3760/cma.j.issn.1674-2907.2011.14.046
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CHINESE JOURNAL OF MODERN NURSING, Volume 17, Issue 14,2011, Pages 1620-1623, doi:10.3760/cma.j.issn.1674-2907.2011.14.003
CHINESE JOURNAL OF MODERN NURSING, Volume 17, Issue 14,2011, Pages 1646-1649, doi:10.3760/cma.j.issn.1674-2907.2011.14.012