Congratulations to Dr. Matthew Farrer on the publication of “The age at onset of LRRK2 p.Gly2019Ser Parkinson’s disease across ancestries and countries of origin,” which appears as a preprint. Abstract Objectives: The LRRK2 p.Gly2019Ser pathogenic variant has reduced penetrance and presents a wide range of age at onset (AAO) in patients with Parkinson’s disease (PD). We…