4.They are basal cell cancer;bile duct cancer;brain tumor (metastatic, primary, secondary);breast cancer;lung cancer, bronchogenic carcinoma;carcinoma of the stomach and so on.

• 它们是基底细胞癌、胆管癌、脑瘤（转移性的、原发性的、继发性的）、乳腺癌、肺癌、支气管癌、胃癌等。