Ferreira, J.J.

mutation patient disease parkinson study lrrk 2 mutations lrrk 2 frequency family control parkinsonism neurology g 2019s mutation g 2019s population 2019ser disorder university cause carrier idiopathic pd 1441h sample onset symptom lrrk 2 gene department neurol parkinson disease idiopathic disord pd cases variant analysis penetrance research identi hospital gigyf table tremor prevalence portugal lrrk 2-associated pd group parkin orthostatic tremor series centre italy pd patients proband r 1441h genet cohort european identi fied estimate identi fication institute method haplotype country portuguese orthostatic di fonzo stage consortium result fonzo paper qsbb series lrrk 2-g mutation genetic r 1441h mutation lrrk 2 mutation 10 years spain / parkinsonism family history