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CHINESE JOURNAL OF COAL INDUSTRY MEDICINE, Volume 3, Issue 12,2000, Pages 1192-1193, doi:10.3969/j.issn.1007-9564.2000.12.014
CHINESE JOURNAL OF COAL INDUSTRY MEDICINE, Volume 3, Issue 12,2000, Pages 1210, doi:10.3969/j.issn.1007-9564.2000.12.032
CHINESE JOURNAL OF COAL INDUSTRY MEDICINE, Volume 3, Issue 12,2000, Pages 1211-1212, doi:10.3969/j.issn.1007-9564.2000.12.034