Differences in Cytotoxic Effects of Activated Murine Peritoneal Macrophages and J774 Monocytic Cells on Metastatic Variants of B16 Melanoma&lt;xref ref-type="fn" rid="fn2"&gt;2&lt;/xref&gt;&lt;xref ref-type="fn" rid="fn3"&gt;3&lt;/xref&gt;
Journal of the National Cancer Institute