PVA/gelatin hydrogel loaded with propolis for the treatment of myocardial infarction oleh Azizah Intan Pangesty, Christoforus Steven Dwinovandi, Sunarso, Silvanus Jhon Adi Putra Tarigan, Siti Fauziyah Rahman, Puspita Anggraini Katili, Winda Azwani, Yudan Whulanza, Abdul Halim Abdullah