Prevalence and incidence of cyclic vomiting syndrome in Japan: A study using Japanese claims data.
Cyclic vomiting syndrome (CVS) is a gastrointestinal disorder that is characterized by recurrent episodes of vomiting.Previous studies have provided reliable data on the prevalence of CVS among children in Japan; however, neither ribavirin coupon prevalence data nor incidence of CVS is available for adults.Hence, we obtained detailed prevalence and