Missing Degree in Author Byline

In the Original Investigation titled “Association Between Mitochondrial DNA Haplogroup Variation and Autism Spectrum Disorders,”¹ published online August 23, 2017, there was a degree missing from the author byline. The seventh author’s name was given as “Dexter Hadley, PhD,” but should have appeared as “Dexter Hadley, MD, PhD.” This article was corrected online.