Assessing Parkinson's disease severity using speech analysis in non-native speakers. - Taha Khan; Lina E. Lundgren; David G. Anderson; Irena Nowak; Mark Dougherty; Antanas Verikas; Misha Pavel; Holly B. Jimison; Slawomir Nowaczyk; Vered Aharonson (Comput. Speech Lang., 2020)