Bond, M; Moll, N; Rosello, A; Bond, R; Schnell, J; Burger, B; Hoekstra, PJ; ... EMTICS Collaborative Group; + view all (2021) Vitamin D levels in children and adolescents with chronic tic disorders: a multicentre study. European Child & Adolescent Psychiatry 10.1007/s00787-021-01757-y. (In press). Green open access