\- (1)age \>= 18 years. (2) with high suspicion of cancer diagnosed by endoscopy, other imaging examinations, pathological examinations, etc.
(3) no treatment with radiotherapy or chemotherapy.
You may not be if
(1) received antineoplastic treatment such as radiation/chemotherapy. (2) not preserved as required. (3) contaminated or volume is insufficient. (4) unclear pathological results (5) incomplete patient information.