CHINESE JOURNAL OF COAL INDUSTRY MEDICINE, Volume 12, Issue 1,2009, Pages 14-15,
CHINESE JOURNAL OF COAL INDUSTRY MEDICINE, Volume 12, Issue 1,2009, Pages 160-162,
CHINESE JOURNAL OF COAL INDUSTRY MEDICINE, Volume 12, Issue 1,2009, Pages 97-98,
CHINESE JOURNAL OF COAL INDUSTRY MEDICINE, Volume 12, Issue 1,2009, Pages 72-73,
CHINESE JOURNAL OF COAL INDUSTRY MEDICINE, Volume 12, Issue 1,2009, Pages 127,