GBA (beta acid glucosidase) is associated with PD susceptibility according to several GWASs and their meta-analyses, but the first association was found in 2011 by Do et al. (Do et al., 2011; Pankratz et al., 2012; Nalls et al., 2014; Vacic et al., 2014). The gene discussed is GBA1; the disease is Parkinson disease.