Decreased penetrance of PD associated with heterozygous GBA p.L444P/R in an elderly cohort. 

Ji S, Wang C, Qiao H, Gu Z, Gan-Or Z, Fon EA and Chan P. Decreased penetrance of PD associated with heterozygous GBA p.L444P/R in an elderly cohort. Movement Disorders. 2020. PubMed