CHINESE JOURNAL OF COAL INDUSTRY MEDICINE, Volume 5, Issue 6,2002, Pages 585-585, doi:10.3969/j.issn.1007-9564.2002.06.058
CHINESE JOURNAL OF COAL INDUSTRY MEDICINE, Volume 5, Issue 6,2002, Pages 581-582, doi:10.3969/j.issn.1007-9564.2002.06.053
CHINESE JOURNAL OF COAL INDUSTRY MEDICINE, Volume 5, Issue 6,2002, Pages 598-599, doi:10.3969/j.issn.1007-9564.2002.06.071
CHINESE JOURNAL OF COAL INDUSTRY MEDICINE, Volume 5, Issue 6,2002, Pages 578-578, doi:10.3969/j.issn.1007-9564.2002.06.049
CHINESE JOURNAL OF COAL INDUSTRY MEDICINE, Volume 5, Issue 6,2002, Pages 618-618, doi:10.3969/j.issn.1007-9564.2002.06.112