Chinese Journal of Coal Industry Medicine, Volume 16, Issue 9,2013, Pages 1449-1451, doi:10.11723/mtgyyx 1007-9564 201309010
Chinese Journal of Coal Industry Medicine, Volume 16, Issue 9,2013, Pages 1566-1569, doi:10.11723/mtgyyx 1007-9564 201309065
Chinese Journal of Coal Industry Medicine, Volume 16, Issue 9,2013, Pages 1506-1507, doi:10.11723/mtgyyx 1007-9564 201309037
Chinese Journal of Coal Industry Medicine, Volume 16, Issue 9,2013, Pages 1425-1428, doi:10.11723/mtgyyx 1007-9564 201309001