Chinese Journal of Coal Industry Medicine, Volume 21, Issue 5,2018, Pages 541-544, doi:10.11723/mtgyyx 1007-9564 201805021
Chinese Journal of Coal Industry Medicine, Volume 21, Issue 5,2018, Pages 549-552, doi:10.11723/mtgyyx 1007-9564 201805023
Chinese Journal of Coal Industry Medicine, Volume 21, Issue 5,2018, Pages 537-540, doi:10.11723/mtgyyx 1007-9564 201805020
Chinese Journal of Coal Industry Medicine, Volume 21, Issue 5,2018, Pages 487-492, doi:10.11723/mtgyyx 1007-9564 201805009