CLINICAL FOCUS, Volume 16, Issue 15,2001, Pages 685-686, doi:10.3969/j.issn.1004-583X.2001.15.009
NATIONAL MEDICAL JOURNAL OF CHINA, Volume 81, Issue 15,2001, Pages 960, doi:10.3760/j:issn:0376-2491.2001.15.026
MODERN REHABILTATION, Volume 5, Issue 15,2001, Pages 126, doi:10.3321/j.issn:1673-8225.2001.15.104
SHANDONG MEDICAL JOURNAL, Volume 41, Issue 15,2001, Pages 70, doi:10.3969/j.issn.1002-266X.2001.15.070