Oral propranolol for treatment of the subgroups of essential tremor: a systematic review and meta-analysis protocol
Manyu Zhang, Wei Li, Lan Hu, Li Chen, Liu Yang, Tian Zhang, Hui Shen, Yanan Peng, Shijun Gao, Zhibin Chen, Tan Wang, Zhenqiang Zhao
BMJ Open Jan 2020, 10 (1) e032096; DOI: 10.1136/bmjopen-2019-032096