CHINA PRACTICAL MEDICAL, Volume 3, Issue 30,2008, Pages 188, doi:10.3969/j.issn.1673-7555.2008.30.144
SHANDONG MEDICAL JOURNAL, Volume 48, Issue 30,2008, Pages 114, doi:10.3969/j.issn.1002-266X.2008.30.094
CHINESE NURSING RESEARCH, Volume 22, Issue 30,2008, Pages 2763-2763, doi:10.3969/j.issn.1009-6493.2008.30.024
CHINESE JOURNAL OF POSTGRADUATES OF MEDICINE, Volume 31, Issue 30,2008, Pages 38-40, doi:10.3760/cma.j.issn.1673-4904.2008.30.015