Answers are grounded in this paper and cite their sources.
Journal Article THE PREVALENCE, NATURAL HISTORY AND DEMENTIA OF PARKINSON'S DISEASE Get access M. POLLOCK, M. POLLOCK From the Neurological Unit, Wellington HospitalWellington, New Zealand Search for other works by this author on: Oxford Academic PubMed Google Scholar R. W. HORNABROOK R. W. HORNABROOK From the Neurological Unit, Wellington HospitalWellington, New Zealand Search for other works by this author on: Oxford Academic PubMed Google Scholar Brain, Volume 89, Issue 3, September 1966, Pages 429–448, https://doi.org/10.1093/brain/89.3.429 Published: 01 September 1966
No takes yet. Share an insight, caveat, or question.
Pollock et al. (1966) studied this question.
Synapse has enriched 5 related papers. Consider them for comparative context: