title: Response to letter: objective assessment of intraoperative ultrasound in neurosurgery.
authors: Department of Neurosurgery, Royal Hallamshire Hospital, Glossop Road, Sheffield, UK.
authors: Richard
authors: R
authors: Mair
authors: Marcel
authors: M
authors: Ivanov
mesh_terms: D001932:Brain Neoplasms / Q000000981:diagnostic imaging* / Q000601:surgery*; D005910:Glioma / Q000000981:diagnostic imaging* / Q000601:surgery*; D006801:Humans; D038361:Neuronavigation; D014463:Ultrasonography