CHINESE JOURNAL OF COAL INDUSTRY MEDICINE, Volume 3, Issue 9,2000, Pages 931-932, doi:10.3969/j.issn.1007-9564.2000.09.044
CHINESE JOURNAL OF COAL INDUSTRY MEDICINE, Volume 3, Issue 9,2000, Pages 907, doi:10.3969/j.issn.1007-9564.2000.09.019
CHINESE JOURNAL OF COAL INDUSTRY MEDICINE, Volume 3, Issue 9,2000, Pages 971, doi:10.3969/j.issn.1007-9564.2000.09.079
CHINESE JOURNAL OF COAL INDUSTRY MEDICINE, Volume 3, Issue 9,2000, Pages 920-921, doi:10.3969/j.issn.1007-9564.2000.09.033
CHINESE JOURNAL OF COAL INDUSTRY MEDICINE, Volume 3, Issue 9,2000, Pages 966, doi:10.3969/j.issn.1007-9564.2000.09.073