Can non-fatal burden estimates from the Global Burden of Disease study be used locally? An investigation using models of stroke and diabetes for South Africa oleh Victoria Pillay-van Wyk, Rifqah Abeeda Roomaney, Mweete Debra Nglazi, Oluwatoyin Folashade Awotiwon, Judith M Katzenellenbogen, Tracy Glass, Janetta Debora Joubert, Debbie Bradshaw