Search for "cytotoxic activity" in Full Text gives 79 result(s) in Beilstein Journal of Organic Chemistry.
Beilstein J. Org. Chem. 2011, 7, 678–698, doi:10.3762/bjoc.7.80
Beilstein J. Org. Chem. 2011, 7, 338–345, doi:10.3762/bjoc.7.44
Beilstein J. Org. Chem. 2011, 7, 210–217, doi:10.3762/bjoc.7.28
Beilstein J. Org. Chem. 2008, 4, No. 48, doi:10.3762/bjoc.4.48