CHINESE JOURNAL OF LNDUSTRIAL HYGIENE AND OCCUPATIONAL DISEASES, Volume 16, Issue 1,1998, , doi:10.3760/cma.j.issn.1001-9391.1998.01.026
CHINESE JOURNAL OF LNDUSTRIAL HYGIENE AND OCCUPATIONAL DISEASES, Volume 16, Issue 1,1998, , doi:10.3760/cma.j.issn.1001-9391.1998.01.001
CHINESE JOURNAL OF LNDUSTRIAL HYGIENE AND OCCUPATIONAL DISEASES, Volume 16, Issue 1,1998, , doi:10.3760/cma.j.issn.1001-9391.1998.01.019
CHINESE JOURNAL OF LNDUSTRIAL HYGIENE AND OCCUPATIONAL DISEASES, Volume 16, Issue 1,1998, , doi:10.3760/cma.j.issn.1001-9391.1998.01.005
CHINESE JOURNAL OF LNDUSTRIAL HYGIENE AND OCCUPATIONAL DISEASES, Volume 16, Issue 1,1998, , doi:10.3760/cma.j.issn.1001-9391.1998.01.017