title: Critical calls.
authors.forename: T L
authors.initials: TL
authors.lastname: Jones
mesh_terms: D002656:Child Day Care Centers; D002675:Child, Preschool; D003140:Communicable Disease Control / Q000379:methods; D018563:Disease Notification; D006506:Hepatitis A / Q000517:prevention & control / Q000635:transmission; D006801:Humans; D013781:Texas