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In vivo antitumor activity of Free PT, Free REGO, PT NPs, REGO NPs, and PT-REGO NPs compared to saline. A549 tumor xenograft-bearing Balb/c nude mice were administered with various drugs via intravenous injection at days 0, 3 and 6. A) Changes in tumor volumes. B) Body weights. C) Represent tumor photograph. D) Tumor weights. The data are presented as the means ± SD (n = 7).
