TY - RPRT TI - Levodopa Responsiveness Subtypes of Freezing of Gait: Results Using a Levodopa Challenge AU - McKay, J. L. AU - Goldstein, F. C. AU - Sommerfeld, B. AU - Bernhard, D. AU - Perez Parra, S. AU - Factor, S. A. PY - 2019 DO - 10.1101/667071 UR - https://www.biorxiv.org/content/10.1101/667071v1 ID - 10.1101/667071 ER -