?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.aulast=Rai&rft.aufirst=D&rft.au=Rai%2C+D&rft.pages=-&rft.date=13+June+2012&rft.issn=1932-6203&rft.atitle=Prenatal+and+Early+Life+Exposure+to+Stressful+Life+Events+and+Risk+of+Autism+Spectrum+Disorders%3A+Population-Based+Studies+in+Sweden+and+England&rft.title=PLoS+One&rft.issue=6&rft.volume=7&rft.genre=article