NATIONAL MEDICAL JOURNAL OF CHINA, Volume 81, Issue 23,2001, Pages 1462-1463, doi:10.3760/j:issn:0376-2491.2001.23.019
JOURNAL OF THE FOURTH MILITARY MEDICAL UNIVERSITY, Volume 22, Issue 23,2001, Pages 2141-2144, doi:10.3321/j.issn:1000-2790.2001.23.008
MODERN REHABILITATION, Volume 5, Issue 23,2001, Pages 81, doi:10.3321/j.issn:1673-8225.2001.23.058
MODERN REHABILITATION, Volume 5, Issue 23,2001, Pages 117, doi:10.3321/j.issn:1673-8225.2001.23.101