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This is an emotionally difficult subject, but for those interested
in a more detailed understanding of how Lang & Lozano* concluded
that mortality among PWPs is two to five times as high as age-matched
controls resulting in a marked reduction in life expectancy among
PWPs, Lang & Lozano offer the following references:

1. Bennett DA, Beckett LA, Murray AM, et al. Prevalence of parkinsonian
signs and associated mortality in a community population of older
people. N Eng J Med 1996;334:71-6.

2. Morens DAM, Davis JW, Grandinetti A, Ross GW, Popper JS, White LR.
Epidemiological observations on Parkinson's Disease: incidence and
mortality in a prospective study of middle-aged men. Neurology 1996;
46:1044-50.

3. Louis ED, Marder K, Cote L, Tang M, Mayeux R. Mortality from
Parkinson's disease. Arch Neurol 1997;54-4.

*Lang AE and Lozano AM. Parkinson's disease: first of two parts.
   N Eng J Med 1998;339(15):1044-51.

Bob Johnson 53/52/48                 [log in to unmask]
Holbrook, MA, USA