CHINESE JOURNAL OF COAL INDUSTRY MEDICINE, Volume 7, Issue 3,2004, Pages 197-198, doi:10.3969/j.issn.1007-9564.2004.03.002
CHINESE JOURNAL OF COAL INDUSTRY MEDICINE, Volume 7, Issue 3,2004, Pages 272-273, doi:10.3969/j.issn.1007-9564.2004.03.063
CHINESE JOURNAL OF COAL INDUSTRY MEDICINE, Volume 7, Issue 3,2004, Pages 252-252, doi:10.3969/j.issn.1007-9564.2004.03.046
CHINESE JOURNAL OF COAL INDUSTRY MEDICINE, Volume 7, Issue 3,2004, Pages 196-196, doi:10.3969/j.issn.1007-9564.2004.03.076
CHINESE JOURNAL OF COAL INDUSTRY MEDICINE, Volume 7, Issue 3,2004, Pages 257-257, doi:10.3969/j.issn.1007-9564.2004.03.080