CHINESE JOURNAL OF COAL INDUSTRY MEDICINE, Volume 4, Issue 2,2001, Pages 139, doi:10.3969/j.issn.1007-9564.2001.02.057
CHINESE JOURNAL OF COAL INDUSTRY MEDICINE, Volume 4, Issue 2,2001, Pages 159, doi:10.3969/j.issn.1007-9564.2001.02.078
CHINESE JOURNAL OF COAL INDUSTRY MEDICINE, Volume 4, Issue 2,2001, Pages 119, doi:10.3969/j.issn.1007-9564.2001.02.038
CHINESE JOURNAL OF COAL INDUSTRY MEDICNE, Volume 4, Issue 2,2001, Pages 109, doi:10.3969/j.issn.1007-9564.2001.02.026
CHINESE JOURNAL OF COAL INDUSTRY MEDICNE, Volume 4, Issue 2,2001, Pages 105, doi:10.3969/j.issn.1007-9564.2001.02.022