Objective To study the influence of intraperitoneal instillation of arsenic trioxide (As_2O_3) on metastasis of hepatoma cell line H_22 under CO_2 pneumoperitoneum in mice.

• 目的研究腹腔内注射三氧化二砷(arsenic trioxide,As2O3)对小鼠CO2气腹下肝癌H22转移的影响。