Beth Bullen, a 44-year-old registered nurse in Caledonia, N.Y., is no stranger to autism spectrum disorders, or ASD. Her 10-year-old son has a severe form of autism, while her 13-year-old son has Asperger's syndrome.
"How they wrote, how they organized, their handwriting, their delay in crawling and walking -- that's when bells and whistles started going off," she said. "My oldest son didn't walk until he was 2, and didn't crawl until he was 15 months old. My younger son was majorly speech...Full Story