FIC1 mutant mice have a defect in the regulation of intestinal bile salt absorption: Ludmila Pawlikwoska, UCSF Liver Center Laboratory and Program in Biochemical Sciences, San Francisco, CA; Roel Ottenhoff, Norbert Looije, Elaine F Eppens, Acad Medical Ctr Amsterdam, Amsterdam Netherlands; Alexander S Knisely, King's College Hospital London, Lonkon Uk; Laura N Bull, UCSF Liver Center Laboratory, San Francisco, CA; Nigel P Killeen, UCSF Department of Microbiology and Immunology, San Francisco, CA; Ronald P Oude Elferink, Acad Medical Ctr Amsterdam, Amsterdam Netherlands; Nelson B Freimer, UCLA Center for Neurobehavioral Genetics, Los Angeles, CA