GCH1 p.Ser80Asn Confers Risk for Parkinson's Disease in East Asian Populations.
INTRODUCTION GCH1 has been implicated in Parkinson's disease (PD), but its risks variants and associations are not well defined. OBJECTIVES Our goal was to investigate the clinical relevance and PD risk associated with the GCH1 p.Ser80Asn variant. METHODS We first identified a segregating GCH1 p.Ser80Asn variant in...