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Natural Killer (NK) cells, lymphocytes of the innate immune system with strong cytotoxic activity, play a major role in the immune response against tumors.
Original Article: Scientists uncover mechanism that prevents tumor growth in melanomaNEXT ARTICLE
Blood is a specialized bodily fluid that delivers necessary substances to the body's cells (in animals) – such as nutrients and oxygen – and transports waste products away from those same cells. In vertebrates, it is composed of blo...