Irva Hertz-Picciotto, Lora Delwiche. “The Rise in Autism and the Role of Age at Diagnosis”. Epidemiology 20, № 1 (2009).
493
A. J. Wakefield et al. “Ileal-lymphoid-nodular Hyperplasia, Non-specific Colitis, and Pervasive Developmental Disorder in Children”. Lancet 351, № 9103 (1998).