Banned PCB Chemicals Still Tied to Autism in U.S. Kids September 6, 2016 A HealthDay story about research by Kristen Lyall, ScD, an assistant professor in the A.J. Drexel Autism Institute, that looked into links between chemicals banned in the 1970s and increased risk of autism, was picked up by several outlets, including UPI, U.S. News & World Report, WebMD, Philly.com, Parent Herald, Daily KOS, Laboratory Equipment, Modern Farmer and Pittsburgh Post-Gazette. Her research was also covered in a video on Nasdaq.com. View Story