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Tumor volume/time growth curve of P1 generation of mice after transplantation: From 21 to 130 days after tumor tissue transplantation, a solid mass with a slightly hard texture that protruded from the skin was observed. Seven of the 15 PDTX models were successful, with a success rate of 46.7%. The tumor formation time ranged from 21 days to 130 days, with a median formation time of 73 days. There was no natural regression after the tumor exceeded 100 mm3.
