The isolation of pregnane-3 omega, 11 beta, 21-triol-20-one, allopregnane-3 omega, 11 beta, 21-triol-20-one, pregnane-3 omega, 21-diol-11,20-dione and delta 4-pregnene-11 beta, 21-diol-3,20-dione from the urine or normal subjects treated with corticotropin. 1954