CHINESE JOURNAL OF COAL INDUSTRY MEDICINE, Volume 6, Issue 5,2003, Pages 460-460, doi:10.3969/j.issn.1007-9564.2003.05.068
CHINESE JOURNAL OF COAL INDUSTRY MEDICINE, Volume 6, Issue 5,2003, Pages 467-468, doi:10.3969/j.issn.1007-9564.2003.05.076
CHINESE JOURNAL OF COAL INDUSTRY MEDICINE, Volume 6, Issue 5,2003, Pages 448-449, doi:10.3969/j.issn.1007-9564.2003.05.055
CHINESE JOURNAL OF COAL INDUSTRY MEDICINE, Volume 6, Issue 5,2003, Pages 469-469, doi:10.3969/j.issn.1007-9564.2003.05.078
CHINESE JOURNAL OF COAL INDUSTRY MEDICINE, Volume 6, Issue 5,2003, Pages 442-443, doi:10.3969/j.issn.1007-9564.2003.05.049