Mindy C Scheithauer1, Jennifer Zarcone2. 1. grid.240023.7000000040427667XJohns Hopkins School of Medicine, Kennedy Krieger Institute, 707 North Broadway, Baltimore, MD 21205 USA ; grid.428158.20000000403716071Marcus Autism Center, 1920 Briarcliff Rd NE, Atlanta, GA 30329 USA ; grid.189967.80000000419367398Emory University School of Medicine, 1920 Briarcliff Rd NE, Atlanta, GA 30329 USA. 2. grid.240023.7000000040427667XJohns Hopkins School of Medicine, Kennedy Krieger Institute, 707 North Broadway, Baltimore, MD 21205 USA.