Our immune systems contain three fundamentally different types of cell: B-cells, T-cells and the mysteriously named Natural Killer cells (NK cells), which are known to be involved in killing tumour cells and other infected ...

Medicine & Health - Medical research

Feb 22, 2011 not rated yet 0

Millions of "natural killer cells" -- nature's first line of defense against cancer, viruses and other infectious microbes --- are on constant patrol inside your body.

Medicine & Health - Medical research

Feb 22, 2009 4.3 / 5 (4) 1