.Zac Efron Says He's "Happy As Well As Well-balanced" After A Hospital Stay In Spain DeadlineCause of Zac Efron's a hospital stay in Spain uncovered A-list superstar is 'fine' Fox NewsZac Efron Shares Health Update After Ibiza Hospitalization Us WeeklyZac Efron 'Recovering' After Being Laid up For A Pool Incident In Spain Yahoo EntertainmentZac Efron Hospitalized After Going Swimming Incident In Ibiza: Reports HuffPost.