Lasegue's sign

例句：

1. 1. The patient exhibited signs of a heart attack during the examination.
   患者检查时表现出心脏病发作的迹象。
2. 2.The researcher discovered a new gene that could be used to diagnose certain diseases.
   研究者发现了一种新的基因，可以用来诊断某些疾病。
3. 3. The team was able to identify the cause of the fire by analyzing the smoke signals.
   团队通过分析烟雾信号找到了火灾的原因。