Flexible sigmoidoscopy and colonoscopy deeloped to help find and remoe precancerous growths.
Flexible sigmoidoscopy and colonoscopy deeloped to help find and remoe precancerous growths.
发明可弯曲乙状结肠镜和结肠镜以发现和切除癌前增生病变.
Flexible sigmoidoscopy and colonoscopy deeloped to help find and remoe precancerous growths.
发明可弯曲乙状结肠镜和结肠镜以发现和切除癌前增生病变.