“…Longitudinal studies are difficult to do, but because “what happens in the future” remains a key question asked by parents of the children we treat, we tackled this important clinical question as well (Biederman, Mick, Faraone, Van Patten, Burback, & Wozniak, 2004; Biederman, Petty, Byrne, Wong, et al, 2009; Wozniak et al, 2011, 2018; Wozniak, DiSalvo, Farrell, Joshi, Uchida, Faraone, et al, 2022). Our results, which aligned with the few other research groups studying this topic, demonstrated a waxing/waning but persistent and chronic course in most of the children and adolescents studied.…”