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(A, D) Time course analysis of tumor growth in nude mice after injection of CAL27 cells. (B, E) The tumors weight were weighed and analyzed by Student t test. Means ± SD were shown. (C, F) Representative images (week 4) of subcutaneous tumor xenograft in nude mice inoculated with CAL27 cells. *p < 0.05, **P < 0.01, ***p < 0.001.
