پرونده:Circle of Willis it.svgDescriptionCircle of Willis it.svg Poligono di Willis con descrizioni in italiano Date 24 March 2008 Source File:Circle of Willis en.svg Author Aracuano
پرونده:Circle of Willis fr.svgThis image is a derivative work of the following images: File:Circle of Willis en.svg licensed with PD-self, 2014-03-17T21:24:34Z Hazmat2 471x750 (12216
پرونده:Circle of Willis pl.svg|other_versions= }} This image is a derivative work of the following images: File:Circle_of_Willis_en.svg licensed with PD-self 2007-01-24T20:31:48Z Rhcastilhos
پرونده:Circle of Willis es.svgholder of this work, hereby publish it under the following license: This image is a derivative work of the following images: File:Circle of Willis pt.svg licensed
پرونده:Circle of Willis-hu.png{{Információ | leírás = Willis-féle agyalapi artériás gyűrű | forrás =http://commons.wikimedia.org/wiki/File:Circle_of_Willis_en.svg | dátum = 2011-10-03