Predictive Role of Pre-Thrombolytic Neutrophil-Platelet Ratio on Hemorrhagic Transformation After Intravenous Thrombolysis in Acute Ischemic Stroke oleh Xu-Dong Cheng BD, Chun-Xi Zhang BD, Qi Zhang BD, Sen Zhou BD, Li-Jun Jia BD, Li-Rong Wang BD, Jian-Hong Wang MD, Neng-Wei Yu MD, Bing-Hu Li PhD