Blais, A.-S., M. Bergeron, G. Nadeau, S. Ramsay, and S. Bolduc. “Anticholinergic Use in Children: Persistence and Patterns of Therapy”. Canadian Urological Association Journal, vol. 10, no. 3-4, Apr. 2016, pp. 137-40, doi:10.5489/cuaj.3527.