The metric properties of a novel non-motor symptoms scale for parkinson's disease : Results from an international pilot studyRAY CHAUDHURI, Kallol; MARTINEZ-MARTIN, Pablo; BARONE, Paolo et al.Movement disorders. 2007, Vol 22, Num 13, pp 1901-1911, issn 0885-3185, 11 p.Article

The Nondeclaration of Nonmotor Symptoms of Parkinson's Disease to Health Care Professionals: An International Study Using the Nonmotor Symptoms QuestionnaireCHAUDHURI, K. Ray; PRIETO-JURCYNSKA, Cristina; ONDO, William et al.Movement disorders. 2010, Vol 25, Num 6, pp 704-709, issn 0885-3185, 6 p.Article

Prevalence of nonmotor symptoms in parkinson's disease in an international setting; Study using nonmotor symptoms questionnaire in 545 patientsMARTINEZ-MARTIN, Pablo; SCHAPIRA, Anthony H. V; TSUBOI, Yoshio et al.Movement disorders. 2007, Vol 22, Num 11, pp 1623-1629, issn 0885-3185, 7 p.Article

International multicenter pilot study of the first comprehensive self-completed nonmotor symptoms questionnaire for Parkinson's disease : The NMSQuest studyCHAUDHURI, Kallol Ray; MARTINEZ-MARTIN, Pablo; KELLY, Linda et al.Movement disorders. 2006, Vol 21, Num 7, pp 916-923, issn 0885-3185, 8 p.Article