In a recent study, Archer and coauthors found that measures derived from automated structural and diffusion MRI analysis protocols (automated imaging differentiation in Parkinsonism [AIDP] and magnetic resonance parkinsonism index [MRPI]) and plasma neurofilament light chain (NfL) levels were associated with disease severity as measured by MDS‐UPDRS III scores.85 The gene discussed is NEFL; the disease is Parkinson disease.