TY - CHAP M1 - Book, Section TI - Parkinson Disease & Essential Tremor A1 - Galifianakis, Nicholas B. A1 - Ghazinouri, A. A2 - Williams, Brie A. A2 - Chang, Anna A2 - Ahalt, Cyrus A2 - Chen, Helen A2 - Conant, Rebecca A2 - Landefeld, C. Seth A2 - Ritchie, Christine A2 - Yukawa, Michi PY - 2014 T2 - Current Diagnosis & Treatment: Geriatrics, 2e AB - Essentials of DiagnosisAny combination of resting tremor, bradykinesia, rigidity, and postural instability (late feature). Bradykinesia is a required feature for diagnosis.Asymmetric onset is the norm.Responds well to levodopa in most cases.Diagnostic accuracy improves with observation over time. SN - PB - McGraw-Hill Education CY - New York, NY Y2 - 2024/04/19 UR - accessmedicine.mhmedical.com/content.aspx?aid=1100066363 ER -