Treatment by electromagnetic field + Iron reduced leukemia cells by 30% in one treatment
The following is from the research paper "Medical Applications of Electromagnetic Fields" athttp://iopscience.iop.org/1755-1315/10/1/012006/pdf/1755-1315_10_1_012006.pdf

The rationale for cancer treatment using low-intensity EMF is based on two concepts that have been well established in the literature: (1) low-intensity non-thermal EMF [electro-magnetic field] enhances cytotoxic [toxic to cells] free radicals via the iron-mediated Fenton reaction; and (2) cancer cells have higher amounts of free iron, thus are more susceptible to the cytotoxic effects of EMF. Since normal cells contain minimal amounts of free iron, the effect would be selectively targeting cancer cells. Thus, no adverse side effect would be expected as in traditional chemotherapy and radiation therapy. This concept has been tested on human cancer cells and normal cells in vitro [in the lab] and proved to be feasible.
Due to their rapid rate of division, most cancer cells have high rates of iron intake and express a high cell surface concentration of transferrin receptors than normal cells. For example, Breast Cancer cells have 5-15 times of transferrin receptors on their cell surface than normal breast cells, and they do take up more iron than normal breast cells. Since cellular response to magnetic fields involve an iron-dependent process, we hypothesize that cancer cells are more responsive to magnetic fields than normal cells. An increase in intracellular [ie: inside the cell] iron concentration would make these cells more susceptible to the effect of a magnetic field.
[They tested the effect on cancerous blood cells (leukemia) by a 60Hz magnetic field of .25mT strength after treatment with holotransferrin (iron loaded transferrin which transports iron into cells). They measured a 30% decrease in cancerous cells which was maintained for 22 hours after a 2 hour exposure to the oscillating magnetic field whereas non-treated cells increased by 17% over the same 24 hr period. Cells w/o extra iron but treated with EMF decreased by 16% at 2 hours but then increased to the same level as non-treated cells. see Figure 2 in the report.]
Thus, our data indicate that magnetic fields have selective cytotoxic effect on cancer cells, especially under conditions of high iron availability. Since transferrin in the circulation is only 30% saturated with iron, it is very easy to increase the availability of iron to cancer cells by simply feeding an animal [or human] with a ferrous salt [such as any basic iron supplement provides]. This will make cancer cells more susceptible to subsequent magnetic field exposure. Oral administration of an iron salt followed by magnetic field exposure can be used for treatment of cancer. Similar effects have been reported with EMF [electro-magnetic field] of different frequencies. Thus, EMF of various frequencies could conceivably be used for cancer treatment. Depending on the amount of damage, cell death (apoptosis and necrosis) or cell cycle arrest (stoppage of reproduction due to DNA strand breaks) can occur. In both cases, the progress of the tumor is retarded.
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If I had a tumor I would use a 12 volt 1 amp transformer that is not shielded with metal (because metal reduces the amount of EMF emited around it) and sleep with it plugged into the wall socket and strapped to me at the tumor location. And I would be taking a lot of iron from supplements daily. The field strength of .25mT is easily gotten by common transformers powered by wall voltage. If you want to measure the EMF strength then buy a $35 gaussmeter from http://www.lessemf.com/gauss.html

The only trouble in treating leukemia is that you have to treat all the blood, not just one tumor location. During winter you could probably achieve the needed field strength with an electric blanket. Otherwise maybe just strapping the transformer over the liver area would suffice since it holds much blood and it moves slowly thru the liver while it is being processed.