. "Russell DW"^^ . "Lund EG"^^ . "Li-Hawkins J"^^ . "Bronson AD"^^ . "PubMed"^^ . "10748047"^^ . "J Biol Chem 275(22);16543-9"^^ . "Expression cloning of an oxysterol 7alpha-hydroxylase selective for 24-hydroxycholesterol."^^ . "2000"^^ .