Luther TT, Hammerman P, Rahmaoui CM, Lee PP, Sela-Herman S, Matula GS, Ananthanarayanan M, Suchy FJ, Cavalieri RR, Lomri N, Scharschmidt BF. Evidence for an ATP-dependent bile acid transport protein other than the canalicular liver ecto-ATPase in rats. Gastroenterology. 1997 Jul; 113(1):249-54.