Chinese Journal of Coal Industry Medicine, Volume 21, Issue 6,2018, Pages 641-644, doi:10.11723/mtgyyx 1007-9564 201806020
Chinese Journal of Coal Industry Medicine, Volume 21, Issue 6,2018, Pages 657-661, doi:10.11723/mtgyyx 1007-9564 201806024
Chinese Journal of Coal Industry Medicine, Volume 21, Issue 6,2018, Pages 637-640, doi:10.11723/mtgyyx 1007-9564 201806019
Chinese Journal of Coal Industry Medicine, Volume 21, Issue 6,2018, Pages 596-599, doi:10.11723/mtgyyx 1007-9564 201806009
Chinese Journal of Coal Industry Medicine, Volume 21, Issue 6,2018, Pages 616-620, doi:10.11723/mtgyyx 1007-9564 201806014