CHINESE JOURNAL OF COAL INDUSTRY MEDICINE, Volume 13, Issue 1,2010, Pages 78-79,
CHINESE JOURNAL OF COAL INDUSTRY MEDICINE, Volume 13, Issue 1,2010, Pages 12-13,
CHINESE JOURNAL OF COAL INDUSTRY MEDICINE, Volume 13, Issue 1,2010, Pages 15-16,
CHINESE JOURNAL OF COAL INDUSTRY MEDICINE, Volume 13, Issue 1,2010, Pages 85-86,