^ абKavaliers, Martin; Wiebe, John P.; Galea, Liisa A.M. (1994). „Reduction of predator odor-induced anxiety in mice by the neurosteroid 3α-hydroxy-4-pregnen-20-one (3αHP)”. Brain Research. 645 (1-2): 325—329. ISSN0006-8993. doi:10.1016/0006-8993(94)91667-5.