LRRK2 and Parkinson disease: Additionally, G2385R polymorphism of the LRRK2 gene which is a known risk factor variant for Parkinson’s Disease (Cai et al., 2013) in the Han Chinese population, as well as the aldehyde dehydrogenases-2 SNP rs671, which occurs in approximately 45% of the population in Taiwan [22, 26–28].