Gastroscopy and biopsy are generally safe when performed by surgeons who have had special training and are experienced in these endoscopic procedures.

在经过特别训练并具有丰富经验的外科医生的操作下，胃镜检查和活组织检查都是安全的。

youdao

Colonoscopy and biopsy are safe when performed by surgeons who have had special training and are experienced in these endoscopic procedures.

在经过特别训练并具有丰富经验的外科医师的操作下，结肠镜检查和活组织检查都是安全的。

youdao

ERCP is safe when performed by surgeons who have had specific training and are experienced in this specialized endoscopic procedure.

在经过特别训练并具有丰富经验的外科医师的操作下，内镜逆行胰胆管造影(ERCP)是安全的。

youdao

During standard endoscopic sinus surgery, bone and tissue are removed in order to open the passageways, and this can result in scarring and a recurrence of sinusitis in one-quarter of patients.

FORBES: Balloon Therapy

They're also developing LEDs for use in endoscopic surgery to replace the xenon lights currently in use, which are bulky and don't last long.

FORBES: Lighting's Eye-Popping Future