NURSING JOURNAL OF CHINESE PEOPLE'S LIBERATION ARMY, Volume 26, Issue 23,2009, Pages 39-40, doi:10.3969/j.issn.1008-9993.2009.23.015
MEDICAL RECAPITULATE, Volume 15, Issue 23,2009, Pages 3617-3619, doi:10.3969/j.issn.1006-2084.2009.23.033
CHINESE JOURNAL OF NOSOCOMIOLOGY, Volume 19, Issue 23,2009, Pages 3195-3197,
CHONGQING MEDICAL JOURNAL, Volume 38, Issue 23,2009, Pages 2948-2950, doi:10.3969/j.issn.1671-8348.2009.23.021
JOURNAL OF NURSES TRAINING, Volume 24, Issue 23,2009, Pages 2124, doi:10.3969/j.issn.1002-6975.2009.23.055