This is a correct answer to the following question about Tourette syndrome. Yes or no?
Answer: Between 0.4% and 3.8% of children ages 5 to 18 may have Tourette's; the prevalence of transient and chronic tics in school-age children is higher, with the more common tics of eye blinking, coughing, throat clearing, sniffing, and facial movements.
Question: how frequently does tourettes occur
