The effect of Gua Sha therapy on Parkinson's disease with rapid eye movement sleep behavior disorder: a randomized controlled trial. - Chen, Mengyuan; Liu, Jie; Ge, Haotian; Zhang, Xinyue; Zhu, Ying; Ding, Zichun; Chen, Juping; Wang, Qiuqin; Xu, Guihua (Neurological Sciences, 2025)