Bibliografisk träff 1978-06-01 The effect of progesterone analogues, naturally occurring steroids, and contraceptive progestins on hypothalamic and anterior pituitary delta4-steroid (progesterone) 5alpha-reductase. Krause JE, Karavolas HJ. Steroids · research support, u.s. gov't, p.h.s.; journal article · DOI 10.1016/s0039-128x(78)80047-6