RT Journal Article SR Electronic T1 Validation of transcranial Doppler ultrasound with an in vivo stereotactic technique. JF American Journal of Neuroradiology JO Am. J. Neuroradiol. FD American Society of Neuroradiology SP 1349 OP 1350 VO 15 IS 7 A1 Razumovsky, A Y A1 Monsein, L H A1 Ackerman, S J A1 Nauta, H J A1 Hanley, D F YR 1994 UL http://www.ajnr.org/content/15/7/1349.abstract