CHINESE JOURNAL OF COAL INDUSTRY MEDICINE, Volume 3, Issue 7,2000, Pages 714-715, doi:10.3969/j.issn.1007-9564.2000.07.037
CHINESE JOURNAL OF COAL INDUSTRY MEDICINE, Volume 3, Issue 7,2000, Pages 737, doi:10.3969/j.issn.1007-9564.2000.07.106
CHINESE JOURNAL OF COAL INDUSTRY MEDICINE, Volume 3, Issue 7,2000, Pages 704-705, doi:10.3969/j.issn.1007-9564.2000.07.026
CHINESE JOURNAL OF COAL INDUSTRY MEDICINE, Volume 3, Issue 7,2000, Pages 730-731, doi:10.3969/j.issn.1007-9564.2000.07.055