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Vertebrobasilar system and its branches, as well as the circle of Willis (sketch)

Areas of atherosclerotic plaque shown from the 1901 autopsy of Adolf Wallenberg's 1895 case of lateral medullary syndrome. (Source: Wallenberg A. Anatomischer Befund in einem als “acute Bulbär-aVection [Embolie der Art. cerebellar. post. inf. sinistr?]” bescreidenen Falle. Archiv für Psychiatrie und Nervenkrankheiten 1901;34:923-59. Edited by Dr. Douglas J Lanska.)

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