Johns Hopkins University School of Medicine, Armstrong Institute Center for Diagnostic Excellence, Baltimore, Maryland.

Correspondence: David E. Newman-Toker, MD, PhD, Johns Hopkins University School of Medicine, Armstrong Institute Center for Diagnostic Excellence, Baltimore, MD 21287 (toker@jhu.edu).

Dr Newman-Toker has conducted government and foundation funded research related to diagnostic error, dizziness, and stroke. He has been loaned research equipment related to diagnosis of dizziness and stroke by two commercial companies (GN Otometrics and Interacoustics) and Johns Hopkins has licensed related diagnostic decision-support technology to GN Otometrics for which Dr Newman-Toker has received a royalty payment. He occasionally serves as a paid consultant, reviewing medicolegal cases for both plaintiff and defense firms related to misdiagnosis of neurological conditions, including dizziness and stroke.