PREDICTORS OF THE USE OF GASTROPROTECTIVE AGENTS IN PATIENTS USING NSAID IN YOGYAKARTA INDONESIA - Indrianto, Ady Bagus; Postgraduate Program, Faculty of Pharmacy, Universitas Gadjah Mada (Faculty of Pharmacy Universitas Gadjah Mada, Yogyakarta, Skip Utara, 55281, Indonesia, 2012)