Age of Early Specialization, Competitive Volume, Injury, and Sleep Habits in Youth Sport: A Preliminary Study of US Youth Basketball. - Meisel, Peter L.; DiFiori, John P.; Côté, Jean; Nguyen, Joseph T.; Brenner, Joel S.; Malina, Robert M.; Ryan III, Ed; Güllich, Arne; Ryan, Ed 3rd (Sports Health: A Multidisciplinary Approach, 2022)