SHANDONG MEDICAL JOURNAL, Volume 44, Issue 20,2004, Pages 29-30, doi:10.3969/j.issn.1002-266X.2004.20.013
JOURNAL OF MEDICAL FORUM, Volume 25, Issue 20,2004, Pages 9-10, doi:10.3969/j.issn.1672-3422.2004.20.005
SHANDONG MEDICAL JOURNAL, Volume 44, Issue 20,2004, Pages 58, doi:10.3969/j.issn.1002-266X.2004.20.049
JOURNAL OF MEDICAL FORUM, Volume 25, Issue 20,2004, Pages 21-22, doi:10.3969/j.issn.1672-3422.2004.20.011