The oxidation of 5-beta-cholestane-3-alpha, 7-alpha, 12-alpha, 26-tetraol to 5-beta-cholestane-3-alpha, 7-alpha, 12-alpha-triol-26-oic acid via 5-beta-cholestane-3-alpha, 7-alpha, 12-alpha-triol-26-al by rat liver
Biochim Biophys Acta. 1966 Mar 28;117(1):266-8.
doi: 10.1016/0304-4165(66)90177-2.