Neuropathic GD mutations are as common in “sporadic” PD than LRRK2 G2019S mutations.42 Considering that 1.4% of patients with PD from academic centers, clinical trials, and population‐based cohorts in the United States, Canada, and Europe with GBA sequencing data carried a neuropathic GD mutation and another 0.7% carried a complex GBA allele, this appears possible, albeit challenging. This evidence concerns the gene LRRK2 and Parkinson disease.