.Zac Efron Claims He's "Delighted As Well As Healthy" After A Hospital Stay In Spain DeadlineCause of Zac Efron's hospitalization in Spain uncovered A-list star is 'thin' Fox NewsZac Efron Shares Health And Wellness Update After Ibiza A Hospital Stay Us WeeklyZac Efron 'Recovering' After Being Hospitalized For A Swimming Pool Happening In Spain Yahoo EntertainmentZac Efron Hospitalized After Swimming Incident In Ibiza: Files HuffPost.