7National Institute for Occupational Safety and Health. Occupational health guideline for benzidine[ EB/OL]. ( 1995 ) [ 2014 - 04 - 22 ]. http ://www. cdc. gov/niosh/doc/81-123/pdfs/0051 -rev. pdf.
8National Institute for Occupational Safety and Health. Occupational health guideline for nitrobenzene [ EB/OL]. ( 1978 ) [ 2014 - 04 - 22 ]. http ://www. edc, gov/niosh/doc/81-123/pdfs/0450, pdf.
9Agrawal A, Guteh M, Amra R, et al. Acute cardiogenic pulmonary oedema with muhiorgan dysfunction-still to learn more about nitro- benzene poisoning[ J]. BMJ Case Reports,2011.
10Skold A, Cosco DL, Klein R. Methemoglobinemia: pathogenesis, diagnosis, and management[J]. South Med J,2011,104( 11 ):757 -761.
