Individual neoplastic diseases often show discrete growth direct effect of tumor metastases or to adverse consequences patterns subject to many modifications according to the associated with these therapeutic modes (e.g., complications stage of the disease, the species involved and the tumor type of immunosuppression which can lead to mortality arising concerned. Primary neoplasms are less difficult to treat in from infectious disease). contrast to secondary neoplasms. The chief type of secon It is therefore quite clear that there is a crucial need for dary neoplastic growth, metastasis, is...