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Poloxamer 407 alone has no antitumor effect on subcutaneous growth of MHCC97‐H cells in nude mice. MHCC97‐H cells were cultured and then prepared as cell suspensions in physiological saline or physiological saline with 2% Poloxamer 407. Cell suspensions were injected into nude mice to form subcutaneous tumors. The results were shown as images of tumor tissues (A), tumor volumes (B), or tumor weights (C)
