RT Journal Article SR Electronic T1 ABCB4 gene sequence variation in women with intrahepatic cholestasis of pregnancy JF Journal of Medical Genetics JO J Med Genet FD BMJ Publishing Group Ltd SP e70 OP e70 DO 10.1136/jmg.40.5.e70 VO 40 IS 5 A1 R Müllenbach A1 K J Linton A1 S Wiltshire A1 N Weerasekera A1 J Chambers A1 E Elias A1 C F Higgins A1 D G Johnston A1 M I McCarthy A1 C Williamson YR 2003 UL http://jmg.bmj.com/content/40/5/e70.abstract AB