Table 1 Cytotoxic extracts of selected plants.
Figure 1 Total number of extracts tested versus active and inactive extracts.
Figure 2 Cytotoxic activity of extracts in three ranges of concentration.
Table 2 Inactive plant extracts.
Table 3 1H and 13C NMR spectroscopic data for compounds 1, 2, 3.
Figure 3 Compounds isolated from P. barbatum..
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