Patients who smoke may find their stay in the hospital at the University of Arkansas for Medical Sciences includes an unanticipated opportunity to stop the tobacco habit. A smoking ban on the entire campus is now in effect. The ban originally was to take effect July Fourth, but the start time was moved because the Independence Day holiday fell on a weekend. Previously, employees and visitors were allowed to light up in designated smoking areas. Now smokers will have to leave the campus to have a cigarette. The ban applies to all employees, patients and visitors. UAMS officials say the hospital and medical school want to set a proper example by going smoke free.