«People diagnosed with both autism and ADHD represent a distinct clinical entity,» (and therapeutic approaches for them) «need to simultaneously address both conditions — and consider how having both conditions also results in unique challenges.»
— Geraldine Dawson, cited in «Genome scan spots common variant differences between autism and ADHD» by Charles Q. Choi about «Identification of shared and differentiating genetic architecture for autism spectrum disorder, attention-deficit hyperactivity disorder and case subgroups.» (Mattheisen et al., 2022)