Methods This observational study uses data collected by the National Clinical Assessment Service for each referral (n=6179 doctors) over an 11-year period (April 2001–March 2012) in England to examine ...

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Background: The issue of when to start treatment in Parkinson’s disease (PD) remains controversial. Some favour treatment at diagnosis while others opt for a “wait and watch” policy. The effect of the ...

Study design This is an ethics-approved, multinational, phase IV, 1-cohort prospective observational study planned to be conducted in several countries (Austria, Belgium, France, Germany, Italy, Spain ...