Hellow guys, Welcome to my website, and you are watching Retrosigmoid craniotomy for clipping of two vertebrobasilar junction aneurysms (3D). and this vIdeo is uploaded by American Association of Neurological Surgeons at 2014-07-31T13:00:00-07:00. We are pramote this video only for entertainment and educational perpose only. So, I hop you like our website.