The literature “Hereditary early-onset Parkinson’s disease caused by mutations in PINK1” was the most co-cited paper (503 citations), followed by “Parkin is recruited selectively to impaired mitochondria and promotes their autophagy” (455 citations) and “Mutations in the parkin gene cause autosomal recessive juvenile parkinsonism” (433 citations). This evidence concerns the gene PRKN and Parkinson disease.