CHINESE JOURNAL OF COAL INDUSTRY MEDICINE, Volume 9, Issue 6,2006, Pages 538-540, doi:10.3969/j.issn.1007-9564.2006.06.002
CHINESE JOURNAL OF COAL INDUSTRY MEDICINE, Volume 9, Issue 6,2006, Pages 587-588, doi:10.3969/j.issn.1007-9564.2006.06.035
CHINESE JOURNAL OF COAL INDUSTRY MEDICINE, Volume 9, Issue 6,2006, Pages 622-622, doi:10.3969/j.issn.1007-9564.2006.06.068
CHINESE JOURNAL OF COAL INDUSTRY MEDICINE, Volume 9, Issue 6,2006, Pages 634-634, doi:10.3969/j.issn.1007-9564.2006.06.101
CHINESE JOURNAL OF COAL INDUSTRY MEDICINE, Volume 9, Issue 6,2006, Pages 642-642, doi:10.3969/j.issn.1007-9564.2006.06.106