I thank my hon. Friend for raising this issue. As a result of inquiries from the Progressive Supranuclear Palsy Association and others, the ONS is carrying out a special exercise to attempt to identify the true number of deaths involving PSP. However, it is extremely difficult to diagnose. I should just point out that medical examiners, when appointed, will be confirming the cause of death in all cases not investigated by the coroner. I think that that will make a difference to the information recorded on death certificates.
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