TY - RPRT TI - Swallowing and chewing difficulties are associated with presynaptic dopaminergic dysfunction and greater non-motor symptom burden in early drug-naïve Parkinson’s patients AU - Polychronis, S. AU - Dervenoulas, G. AU - Yousaf, T. AU - Niccolini, F. AU - Pagano, G. AU - Politis, M. PY - 2019 DO - 10.1101/577148 UR - https://www.biorxiv.org/content/10.1101/577148v1 ID - 10.1101/577148 ER -