CHINESE JOURNAL OF COAL INDUSTRY MEDICINE, Volume 14, Issue 1,2011, Pages 117-118,
CHINESE JOURNAL OF COAL INDUSTRY MEDICINE, Volume 14, Issue 1,2011, Pages 153,
CHINESE JOURNAL OF COAL INDUSTRY MEDICINE, Volume 14, Issue 1,2011, Pages 41-42,
CHINESE JOURNAL OF COAL INDUSTRY MEDICINE, Volume 14, Issue 1,2011, Pages 143,
CHINESE JOURNAL OF COAL INDUSTRY MEDICINE, Volume 14, Issue 1,2011, Pages 101-102,