Inhibition of tumor growth in nude mice model. A. Tumor volumes were measured every 2 days after the first injection. The average calculated tumor volumes are shown for the indicated time points. The average tumor volumes of Group I to IV were smaller than other four groups (P < 0.01). The average tumor volume of Group I was the smallest than other groups (P < 0.01). No significant difference in average tumor volumes of Group V to VIII was seen during the whole procedure (P > 0.05). B. The bar chart shows the average tumor weights of all 8 groups. The average tumor weight of Group I was the lightest. * indicates P < 0.05, ** indicates P < 0.01 when compared to Group I.
Chen et al. World Journal of Surgical Oncology 2012 10:3 doi:10.1186/1477-7819-10-3