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Table 2 Incidence and multiplicity of lung tumors in B6C3F1 mice 17 months following exposure to Mitsui-7 MWCNT

From: Promotion of lung adenocarcinoma following inhalation exposure to multi-walled carbon nanotubes

Treatment Total number of mice Percent of animals with tumors Total number of lung tumors Lung tumors/total number of animals Number of adenocarcinomas/group
AIR 56 23.2 17 0.25 ±0.166 7
MCA 54 51.9* 41* 0.81 ±0.167 14*
MWCNT 49 26.5 20 0.38 ±0.185 7
MCA + MWCNT 42 90.5* 133* 2.9 ±0.386* 56*
  1. *Indicates statistical significance at p < .0001 ± indicates standard deviation.