[Corrections] Correction to Lancet Neurol 2019; 18: 748–59

Wilson H, Dervenoulas G, Pagano G, et al. Serotonergic pathology and disease burden in the premotor and motor phase of A53T α-synuclein parkinsonism: a cross-sectional study. Lancet Neurol 2019; 18: 748–59—In the Study design and participants section of this Article, the following text was deleted from the end of the first sentence“, and patients with idiopathic Parkinson's disease (cohort 1) from specialist Movement Disorders clinics at King's College Hospital, London, UK” and the following two sentences were added to the end of the penultimate paragraph: “The [11C] DASB PET scans for the idiopathic Parkinson's disease control group in the analyses of cohort 1 were provided through the TRANSEURO study.