Three of the patients (P7, P14, P16) carried GBA1 RV out of the 14 whole exomes sequenced, and we identified three patients (P10, P16, P25) who carried beside the GBA1 rare variant an additional rare heterozygous variant in genes which are associated with PD based on OMIM or on the scientific literature. The gene discussed is GBA1; the disease is Parkinson disease.