Association of Postural Instability with Autonomic Dysfunction in Early Parkinson's Disease.
Sooyeoun YouHyun Ah KimHyung LeePublished in: Journal of clinical medicine (2020)
PI was associated with parasympathetic autonomic dysfunction in early PD. This result was in accordance with a previous assumption that PI in PD is related to parasympathetic cholinergic neuron loss in the brainstem.