Chinese Journal of Coal Industry Medicine, Volume 14, Issue 10,2011, Pages 1505-1506,
Chinese Journal of Coal Industry Medicine, Volume 14, Issue 10,2011, Pages 1531-1532,
Chinese Journal of Coal Industry Medicine, Volume 14, Issue 10,2011, Pages 1464-1465,
Chinese Journal of Coal Industry Medicine, Volume 14, Issue 10,2011, Pages 1470-1471,
Chinese Journal of Coal Industry Medicine, Volume 14, Issue 10,2011, Pages 1430-1431,