severityn.严格；严重；严肃severity classification严重等级分类severity of illness scale疾病严重程度量表severity of illness score疾病严重程度评分severity of illness index病情严重度指数severity of traffic accident交通事故严重程度Severity tempered with gentleness宽猛相济Severity of chronic periodontitis慢性重度牙周炎severity characterization of tauma创伤严重特征评估法Severity of coronary artery lesion冠脉病变程度severity of coronary artery disease冠状动脉病变程度