Literacy Outcomes of Children With Early Childhood Speech Sound Disorders: Impact of Endophenotypes. - Lewis, Barbara A.; Avrich, Allison A.; Freebairn, Lisa A.; Hansen, Amy J.; Sucheston, Lara E.; Kuo, Iris; Taylor, H. Gerry; Iyengar, Sudha K.; Stein, Catherine M. (Journal of Speech, Language & Hearing Research, 2011)