On February 20-21, 2016, TARF hosted 21 researchers and clinicians from all over the United States and Canada.  In attendance were geneticists, immunologists, gastroenterologists, neuroanatomists, neuropathologists, pediatricians, psychiatrists, neuroscientists, and various other researchers.  General themes that were discussed were the heterogeneity of autism, the challenges of integrating the findings of all the different disciplines, and the difficulty of interpreting the flood of data that autism research faces.