内窥镜检查法

例句：

1. 1. The doctor performed an endoscopy to examine the patient's throat.
   医生进行了内窥镜检查以检查患者的喉咙。
2. 2. The procedure is painless and can be done with minimal discomfort.
   该程序无痛且可以最小化不适感进行。
3. 3. Endoscopy is a common tool used in gastroenterology for examining the digestive tract.
   内窥镜是胃肠病学中常用的工具，用于检查消化道。