Nonmotor gastrointestinal disorders in older patients with Parkinson's disease: is there hope?
Clin Interv Aging. 2016 Nov 11;11:1601-1608. doi: 10.2147/CIA.S106284. eCollection 2016.
Clin Interv Aging. 2016.
PMID: 27956826
Free PMC article.
Clinical Trial.