Study on the Level of Parathyroid Hormone and Severity and Prognosis of Cerebral Ischemic Stroke Severity in Middle-aged and Elderly People 
ZHANG Donglin,LI Chengliang,LI Dan,WANG Minjuan
Chinese General Practice . 2021, (36): 4628 -4632 .  DOI: 10.12114/j.issn.1007-9572.2021.02.064