Hellow guys, Welcome to my website, and you are watching Transmeatal retrosigmoid approach Koos grade 4 vestibular schwannoma. and this vIdeo is uploaded by Dr Sorin Aldea Neurochirurgie at 2023-07-02T03:26:08-07:00. We are pramote this video only for entertainment and educational perpose only. So, I hop you like our website.