William J. Rea 
Chemical Sensitivity, Volume I [PDF ebook] 

Chemical Sensitivity is the first major scientific book series on chemical sensitivity, an increasingly important worldwide health problem. This four-volume series features results from the study of more than 20, 000 environmentally sensitive patients at the Environmental Health Center (EHC) in Dallas. Results from the study at EHC are supplemented by information accumulated from the treatment and study of an estimated 100, 000 patients by other environmentally oriented physicians and scientists around the world.