Lemen, R. A. (2004). Asbestos in brakes: exposure and risk of disease. American journal of industrial medicine, 45(3), 229-237.
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4243788/
Workers with heavy exposure to asbestos have a similar risk of lung cancer as persons with low or no exposure 20 years after the exposure has ended.