...Positive for TM4SF1 or EpCAM expression (expression≥25%), with three classifications; (1) Recurrent or existing lesions at the primary site with tumor tissue samples collected within 1 year, which are positive for TM4SF1 or EpCAM by immunohistochemistry; (2) New metastatic lesions at the non-primary sites, which are positive for TM4SF1 or EpCAM by immunohistochemistry; (3) Remaining tumor lesions at the primary site with tumor tissue samples collected more than 1 year ago, and the lesions are positive for TM4SF1 or EpCAM by immunohistochemistry based on re-biopsy...