Non-motor symptoms of Parkinson’s disease: the patient’s perspective

Sleep–wake changes in the premotor stage of Parkinson disease

(2011) Alex Iranzo   JOURNAL OF THE NEUROLOGICAL SCIENCES

Do nonmotor symptoms in Parkinson's disease differ from normal aging?

(2011) Syam Krishnan et al.   MOVEMENT DISORDERS

Nonmotor versus motor symptoms: How much do they matter to health status in Parkinson's disease?

(2011) Claire Hinnell et al.   MOVEMENT DISORDERS

The patients' perception of prodromal symptoms before the initial diagnosis of Parkinson's disease

(2011) Alexandra Gaenslen et al.   MOVEMENT DISORDERS

Health-related quality-of-life scales in Parkinson's disease: Critique and recommendations

(2011) Pablo Martinez-Martin et al.   MOVEMENT DISORDERS

A 12-Year Population-Based Study of Psychosis in Parkinson Disease

(2010) Elin B. Forsaa et al.   ARCHIVES OF NEUROLOGY

The PRIAMO study: A multicenter assessment of nonmotor symptoms and their impact on quality of life in Parkinson's disease

(2009) Paolo Barone et al.   MOVEMENT DISORDERS

Quality of life in Parkinson's disease: The relative importance of the symptoms

(2008) Shibley Rahman et al.   MOVEMENT DISORDERS