Observational Study in Parkinson's Disease of the Primary Care Population of Patients Treated With Pramipexole

The primary objective of this study was to describe neurologists' population of patients treated with pramipexole and suffering from Parkinson's disease (so called 'primary care' population). The secondary objectives were: * Evaluate the mean dose of pramipexole prescribed under actual conditions of use depending on the severity of the disease. * Evaluate the reasons for choosing pramipexole as treatment. * Identify the patient profiles determining the choice of dose of pramipexole prescribed