a group of eight rabbits was exposed ( orally ) for 1 hr to a distilled water aerosol ( sham control ) or to submicrometer aerosols of either a transition metal sulfite complex ( fe ( iii ) -s ( iv ] , sodium sulfite ( na2so3 ) , or sulfuric acid ( h2so4 ) .
C0038750
sulfite
C0074771
sodium sulfite