RT Journal Article SR Electronic T1 Tics, TikTok and COVID-19 JF Archives of Disease in Childhood JO Arch Dis Child FD BMJ Publishing Group Ltd and Royal College of Paediatrics and Child Health SP 417 OP 417 DO 10.1136/archdischild-2021-321885 VO 106 IS 5 A1 Rob J Forsyth YR 2021 UL http://adc.bmj.com/content/106/5/417.abstract AB