Chinese Journal of Modern Nursing, Volume 18, Issue 31,2012, Pages 3832-3834, doi:10.3760/cma.j.issn.1674-2907.2012.31.041
Chinese Journal of Modern Nursing, Volume 18, Issue 31,2012, Pages 3810-3811, doi:10.3760/cma.j.issn.1674-2907.2012.31.030
Chinese Journal of Modern Nursing, Volume 18, Issue 31,2012, Pages 3802-3805, doi:10.3760/cma.j.issn.1674-2907.2012.31.027