Single positive T cells detectable in the spleen.
West LJ. 2002 Sep-Oct. Defining critical windows in the development of the human immune system. Hum Exp Toxicol 21(9-10):499-505.
Functional capability of fetal T lymphocytes begins to develop through week 26.
Duration: 12 weeks
West LJ. 2002 Sep-Oct. Defining critical windows in the development of the human immune system. Hum Exp Toxicol 21(9-10):499-505.