Griffiths, W., Schumacher, M., Liere, P., Akwa, Y., Rajkowski, K., Griffiths, W., . . . Baulieu, E. (2008). Pregnenolone sulfate in the brain: A controversial neurosteroid. Neurochemistry International, 52(4-5), pp. 522-540. doi:10.1016/j.neuint.2007.08.022

Griffiths, William, M. Schumacher, P. Liere, Y. Akwa, K. Rajkowski, W. Griffiths, K. Bodin, J. Sjövall, and E.-E Baulieu. "Pregnenolone Sulfate in the Brain: A Controversial Neurosteroid." Neurochemistry International 52, no. 4-5 (2008): 522-540.

Griffiths, William, et al. "Pregnenolone Sulfate in the Brain: A Controversial Neurosteroid." Neurochemistry International 52.4-5 (2008): 522-540.