Ancient DNA was extracted from 13 skeletal remains from the burial groups of Khitan nobles, which were excavated in nort......

目的：研究对支气管哮喘急性发作患者进行护理干预的临床效果。方法回顾支气管哮喘急性发作患者76例，将其分成实验组38例，对照组38例，给......