['INBIFO', 'Institut', 'fiir', 'biologische', 'Forschung:', 'Koln', 'REPORT', 'A', '0500/1380,', 'PART', '2', 'PAGE:', '1-2', 'GROUP', 'TPM', '~', ' NEICOTINE', 'CO', 'NITRIC', 'OXIDE', 'OTHER', 'NITRO-', 'CONCENTRATION', 'CONCENTRATION)', 'CONCENTRATION', 'CONCENTRATION', 'GEN', 'OXIDES', 'CONC', 'ENTRATION', '(mg/1)', '(g/l)', '(ppm).', '(ppm)', '(ppm)', 'aaa', 'NUTT', 'nnUnnEnUEDEnD', 'nnn', 'ns', 'oe', '1-GR', 'sham:', 'smoking', 'fe)', 'fe)', 'oO:', 'fe)', '2-GR', '0.508:', '33.56', '325', '6.29', '<', '0.03', '3-GR', '°', 'fo)', 'oO:', '9.92', '0.41', '4-GR', 'fe}', '(o)', 'fe)', '32.41', '2235', '5~-GR', 'fe)', 're)', 'fa)', '99.27', '4.73', '6-GR', '0.503', '33.85', '326', '40.42', '0.69', '7-GR:', '0.', '508', '33.56', '325.', '6.29', '<', '0.03', 'During', 'the', 'study', 'the', 'rats', 'were', 'kept', 'above', 'OHC', 'level', '(SPF-like', 'con-', 'ditions’).', 'Time', 'dependency', 'of', 'biological', 'effects', 'were', 'studied', 'by', 'interim', 'dis-~', 'sections', 'after', '7,', '14', 'and!', '21', 'days', 'of', 'inhalation', 'and', 'after', 'a', 're~', 'covery', 'period', 'of', '21', '+', '7', 'and', '21', '+', '211', 'days.', 'This', 'part', 'reports', 'the', 'applied', 'exposure', 'parameters,', 'the', 'methods', 'of', 'analysis', 'and', 'the', 'analytical', 'data', 'for', 'the', '21', 'd-inhalation', 'period.', '66S0b09z02']