[4] Holmes, P. V., and Dickson, A. D. (1971). X-zone degeneration in the adrenal glands of adult and immature female mice. J. Anat. 108, 159-168.
[5] Holmes, P. V., and Dickson, A. D. (1971). The effect on the mouse adrenal X-zone of blastocysts transplanted under the kidney capsule. J. Reprod. 25, 111-113.