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  Indian J Med Microbiol
 

Figure 2: The effects of PR extract on cell viability and colony formation. For SRB method, the cancer cells were treated with PR extract for 0-72 hr (0-500 mg/mL), and measured the cells viability by SRB assay (a-b). For colony formation method, the cells were treated with PR extract for 24 h, changed to the new medium and cultured for another 14 days, stained with crystal violet, and then counted (c and d). *p < 0.05 vs. control groups

Figure 2: The effects of PR extract on cell viability and colony formation. For SRB method, the cancer cells were treated with PR extract for 0-72 hr (0-500 mg/mL), and measured the cells viability by SRB assay (a-b). For colony formation method, the cells were treated with PR extract for 24 h, changed to the new medium and cultured for another 14 days, stained with crystal violet, and then counted (c and d). <i>*p</i> < 0.05 vs. control groups