Journal of Clinical UltrasoundVolume 36, Issue 5 p. 303-304 Correspondence Comment on “Transcranial Doppler Ultrasonographic Evaluation of Cerebral Circulation During Passive Tilting in Patients with Parkinson's Disease” Vijay K. Sharma MRCP, RVT, Vijay K. Sharma MRCP, RVT Division of Neurology, National University Hospital, SingaporeSearch for more papers by this authorBernard P.L. Chan MRCP, Bernard P.L. Chan MRCP Division of Neurology, National University Hospital, SingaporeSearch for more papers by this author Vijay K. Sharma MRCP, RVT, Vijay K. Sharma MRCP, RVT Division of Neurology, National University Hospital, SingaporeSearch for more papers by this authorBernard P.L. Chan MRCP, Bernard P.L. Chan MRCP Division of Neurology, National University Hospital, SingaporeSearch for more papers by this author First published: 19 February 2008 https://doi.org/10.1002/jcu.20403AboutPDF ToolsRequest permissionExport citationAdd to favoritesTrack citation ShareShare Give accessShare full text accessShare full-text accessPlease review our Terms and Conditions of Use and check box below to share full-text version of article.I have read and accept the Wiley Online Library Terms and Conditions of UseShareable LinkUse the link below to share a full-text version of this article with your friends and colleagues. Learn more.Copy URL Share a linkShare onFacebookTwitterLinkedInRedditWechat No abstract is available for this article. Volume36, Issue5June 2008Pages 303-304 RelatedInformation