1. Safety and tolerability of COMT inhibitors;Brooks;Neurology,2004
2. Epidemiology of Parkinson’s disease;de Lau;Lancet Neurol.,2006
3. Prognosis of Parkinson disease: risk of dementia and mortality: the Rotterdam study;de Lau;Arch. Neurol.,2005
4. Food and Drug Administration (FDA). FDA Adverse Event Reporting System (FAERS) Statistics. Available from: (accessed on 10/26/2012).
5. Food and Drug Adminstration (FDA), 2010. FDA Drug Safety Communication: Ongoing Safety Review of Stalevo (Entacapone/Carbidopa/Levodopa) and Possible Development of Prostate Cancer. Available from: (accessed on 10/26/2012).