HEALTH VOCATIONAL EDUCATION, Volume 22, Issue 21,2004, Pages 68-69, doi:10.3969/j.issn.1671-1246.2004.21.048
MATERNAL AND CHILD HEALTH CARE OF CHINA, Volume 19, Issue 21,2004, Pages 105-106, doi:10.3969/j.issn.1001-4411.2004.21.063
CHINESE JOURNAL OF CLINICAL REHABILITATION, Volume 8, Issue 21,2004, Pages 4343,4345, doi:10.3321/j.issn:1673-8225.2004.21.144
CAPITAL MEDICINE, , Issue 21,2004, Pages 11-12, doi:10.3969/j.issn.1005-8257.2004.21.005
JOURNAL OF PRACTICAL MEDICAL TECHNIQUES, Volume 11, Issue 21,2004, Pages 2289-2290, doi:10.3969/j.issn.1671-5098.2004.21.071