[1] Vanderbilt Univ, Med Ctr, Dept Pediat, Nashville, TN 37212 USA
[2] Vanderbilt Univ, Dept Psychiat, Med Ctr, Nashville, TN 37212 USA
[3] Vanderbilt Univ, Dept Obstet & Gynecol, Med Ctr, Nashville, TN 37212 USA
[4] Vanderbilt Univ, Dept Pharmacol, Med Ctr, Nashville, TN 37212 USA
[5] Vanderbilt Univ, Vanderbilt Kennedy Ctr, Treatment & Res Inst Autism Spectrum Disorders, Med Ctr, Nashville, TN 37212 USA
[6] Vanderbilt Univ, Med Ctr, Vanderbilt Evidence Based Practice Ctr, Inst Med & Publ Hlth, Nashville, TN 37212 USA