Comment on

• The neurochemistry of therapeutics: levodopa pharmacodynamics in Parkinson's disease.

  Frey KA. Frey KA. Ann Neurol. 2001 Mar;49(3):285-7. Ann Neurol. 2001. PMID: 11261500 No abstract available.
• Biochemical variations in the synaptic level of dopamine precede motor fluctuations in Parkinson's disease: PET evidence of increased dopamine turnover.

  de la Fuente-Fernández R, Lu JQ, Sossi V, Jivan S, Schulzer M, Holden JE, Lee CS, Ruth TJ, Calne DB, Stoessl AJ. de la Fuente-Fernández R, et al. Ann Neurol. 2001 Mar;49(3):298-303. doi: 10.1002/ana.65.abs. Ann Neurol. 2001. PMID: 11261503