CHINESE JOURNAL OF INDUSTRIAL HYGIENE AND OCCUPATIONAL DISEASES, Volume 16, Issue 2,1998, , doi:10.3760/cma.j.issn.1001-9391.1998.02.007
CHINESE JOURNAL OF INDUSTRIAL HYGIENE AND OCCUPATIONAL DISEASES, Volume 16, Issue 2,1998, , doi:10.3760/cma.j.issn.1001-9391.1998.02.015
CHINESE JOURNAL OF INDUSTRIAL HYGIENE AND OCCUPATIONAL DISEASES, Volume 16, Issue 2,1998, , doi:10.3760/cma.j.issn.1001-9391.1998.02.012
CHINESE JOURNAL OF INDUSTRIAL HYGIENE AND OCCUPATIONAL DISEASES, Volume 16, Issue 2,1998, , doi:10.3760/cma.j.issn.1001-9391.1998.02.020
CHINESE JOURNAL OF INDUSTRIAL HYGIENE AND OCCUPATIONAL DISEASES, Volume 16, Issue 2,1998, , doi:10.3760/cma.j.issn.1001-9391.1998.02.001