SHANDONG MEDICAL JOURNAL, Volume 50, Issue 41,2010, Pages 101-102, doi:10.3969/j.issn.1002-266X.2010.41.066
SHANDONG MEDICAL JOURNAL, Volume 50, Issue 41,2010, Pages 58-59, doi:10.3969/j.issn.1002-266X.2010.41.038
NATIONAL MEDICAL JOURNAL OF CHINA, Volume 90, Issue 41,2010, Pages 2907-2910, doi:10.3760/cma.j.issn.0376-2491.2010.41.007