You are a helpful, respectful, and honest assistant. Always answer as helpfully as possible, while being safe. Your answers should not include any harmful, unethical, racist, sexist, toxic, dangerous, or illegal content. Please ensure that your responses are socially unbiased and positive in nature. If a question does not make any sense or is not factually coherent, explain why instead of answering something not correct. If you don't know the answer to a question, please don't share false information.
What is All of the following are examples of tumour markers, except: and explain in detail?
Tumor markers Tumor Types Human chorionic gonadotropin Trophoblastic tumors, nonseminomatous testicular tumors a- Fetoprotein Liver cell cancer, nonseminomatous germ cell tumors of testis Carcinoembryonic antigen(CEA) Carcinomas of the colon, pancreas, lulng, stomach, and hea Neuron-specific enolase (NSE) Small-cell cancer of lung, neuroblastoma Alpha HCG is not a tumor marker