Additional resources provided by Dr. Richard Clapp:
Aschengrau A, Rogers S, Ozonoff D. Perchloroethylene-Contaminated Drinking Water and Risk of Breast Cancer: Additional Results from Cape Cod, Massachusetts, USA. Environ Health Perspect 111:167-173, 2003.
Vlaanderen J, Straif K, Ruder A, et al. Tetrachloroethylene Exposure and Bladder Cancer Risk: A Meta-Analysis of Dry-Cleaning-Worker Studies. Environ Health Perspect 122:661-666, 2014.
IARC Monographs. Vol. 106. Trichloroethylene, Tetrachloroethylene, and Some Chlorinated Solvents. IARC: Lyon, France, 2014.
Toxic Use Reduction Institute (TURI). Professional Wet Cleaning Workgroup www.turi.org/Our_Work/Business/Small_Businesses/Dry_Cleaning/Professional_Wet_Cleaing_Workgroup