Parkinson's Disease Diagnostic Observations (PADDO): study rationale and design of a prospective cohort study for early differentiation of parkinsonism.
Anouke van RumundMarjolein B AertsRianne A J EsselinkFrederick J A MeijerMarcel M VerbeekBastiaan R BloemPublished in: BMC neurology (2018)
NCT01249768, registered November 26 2010.
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