Identification of 7(8) and 8(9) unsaturated adrenal steroid metabolites produced by patients with 7-dehydrosterol-Δ7-reductase deficiency (Smith–Lemli–Opitz syndrome) - Shackleton, Cedric; Roitman, Esther; Guo, Li-Wei; Wilson, William K.; Porter, Forbes D. (Journal of Steroid Biochemistry & Molecular Biology, 2002)