Short-and long-term responsiveness of deep brain stimulation on motor and cognitive outcomes in GBA vs. Non-GBA parkinson's disease: a systematic review and meta-analysis of observational studies. - Gonzales Romero PF; Bermejo Rosado P; Paredes Torres F; Váscones-Román FF; Limbania D; Pichardo-Rojas D; Quispe-Vicuña C; Nuñez-Castellanos C; Yazdanian F; Warren AE; Pacheco-Barrios N; Rolston JD (Neurosurgical review, 2026)