CHINESE JOURNAL OF COAL INDUSTRY MEDICINE, Volume 6, Issue 7,2003, Pages 641-641, doi:10.3969/j.issn.1007-9564.2003.07.053
CHINESE JOURNAL OF COAL INDUSTRY MEDICINE, Volume 6, Issue 7,2003, Pages 655-656, doi:10.3969/j.issn.1007-9564.2003.07.066
CHINESE JOURNAL OF COAL INDUSTRY MEDICINE, Volume 6, Issue 7,2003, Pages 649-649, doi:10.3969/j.issn.1007-9564.2003.07.061
CHINESE JOURNAL OF COAL INDUSTRY MEDICINE, Volume 6, Issue 7,2003, Pages 665-666, doi:10.3969/j.issn.1007-9564.2003.07.075
CHINESE JOURNAL OF COAL INDUSTRY MEDICINE, Volume 6, Issue 7,2003, Pages 630-631, doi:10.3969/j.issn.1007-9564.2003.07.041