CHINESE JOURNAL OF PRACTICAL NURSING, Volume 23, Issue 21,2007, Pages 50, doi:10.3760/cma.j.issn.1672-7088.2007.21.029
MEDICINE AND PHILOSOPHY, Volume 28, Issue 21,2007, Pages 71-73,
CONTEMPORARY MEDICINE, , Issue 21,2007, Pages 102-103, doi:10.3969/j.issn.1009-4393.2007.21.061
CHINA PRACTICAL MEDICINE, Volume 2, Issue 21,2007, Pages 29-30, doi:10.3969/j.issn.1673-7555.2007.21.024