Siv endoscopically ua ke nrog monopolar electrosurgical tam sim no kom tau txais cov kab mob hauv plab hnyuv mucosal biopsies thiab tshem tawm cov sessile polyps. Tshiab streamlined catheter tsim los txhim kho efficiency kom dhau los ntawm tortuous anatomy Ntau lub khob tsim rau txawv mucosa / submucosa
