BACKGROUND: Guaiac-based fecal occult blood tests (FOBTs) for colorectal cancer screening are not specific for human hemoglobin and hae low sensitiity.

• 背景：以愈创木脂为试剂的粪便潜血实验(FOBTs)用于结直肠癌的筛查中，不仅对人血红蛋白特异性不高而且敏感性也很低。