FRITHZ , GÖRAN. “Studies on Cerebrovascular Stroke: I. Epidemiology of First-Time Strokes in Persons under 70 Years of Age”. Upsala Journal of Medical Sciences 80, no. 3 (November 1, 1975): 141–147. Accessed November 14, 2026. https://ujms.net/index.php/ujms/article/view/7352.