Re:Survey of non-invasive ventilation use in ALS in Britain: authors' response
I understand Dr Bourne's concerns regarding my criticism of the survey of NIV reported from Sheffield. My Editorial Commentary was prompted by the very evident shortcomings in the survey reported, relying as it does on unverified data. We have reached a stage in epidemiological work when accurate data are needed to assess the uptake of medical interventions and their outcomes. Surveys cannot provide this essential evidential database.
Conflict of Interest: