We have all been touched by this terrible illness. According to the American Cancer Society more than a half-million people die annually of cancer in the US. In Puerto Rico, the mortality rate is 5,000 patients per year, with a 2% increase each year.
Cancer results from uncontrollable cell proliferation, which leads to the formation of malignant tumors in different parts of the body. These tumors affect the physiological function of tissues and organs and are the target of cancer treatment.