Letter to the Editors
Authors' response to Marras and Oakes, ‘piecing together the puzzle of progression and mortality in Parkinson's disease’
Professor Nick Holford, Department Pharmacology & Clinical Pharmacology, University of Auckland, 85 Park Road, Private Bag 92019, Auckland, New Zealand.
Tel.: +64 (9) 923-6730
Fax: +64 (9) 373 7090
No abstract is available for this article.