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In vitro effects of bis-thiobarbiturates 3–7 and 9–19 and 5-FU on cell viability of non-tumor cell lines of normal human dermal fibroblasts (NHDF), and human adenocarcinoma tumor cell lines of colorectal (Caco-2) and breast (MCF-7), at the single concentration of 30 µM. Results are expressed as average values ± standard deviation of at least two independent assays performed in quadruplicate. * p < 0.05 versus the negative control by Student’s t-test.
