Nasution, I., H. S. Hutagalung, and E. Irawan. “Validation of the Premise Score After Addition of Recurrent Stroke Variable to Predicting Early Mortality in Acute Ischemic Stroke Patients”. Open Access Macedonian Journal of Medical Sciences, vol. 10, no. T7, Mar. 2022, pp. 81-86, doi:10.3889/oamjms.2022.9295.