Redirected from Killer T-cell
K cells are probably a sub-set of NK cells.
... of 18, 8.7% from 18 to 24, 29.5% from 25 to 44, 21.0% from 45 to 64, and 13.5% who are 65 years of age or older. The median age is 35 years. For every 100 females there ...