J A Seckar et al.
Food and chemical toxicology : an international journal published for the British Industrial Biological Research Association, 24(3), 237-240 (1986-03-01)
Groups of 110 rats of each sex were exposed by whole-body inhalation to 0, 1000, 10,000 or 20,000 ppm (v/v) of hydrochlorofluorocarbon 142b (CFC 142b or 1-chloro-1, 1-difluoroethane) for 6 hr/day, 5 days/wk for 104 wk (ten rats from each