12 Wasmuth Wasmuth E E Glantz Glantz A A Keppeler Keppeler A A et al et al Intrahepatic cholestasis of pregnancy: the severe form is associated with common variants of the hepatobiliary phospholipid transporter ABCB4 gene Intrahepatic cholestasis of pregnancy: the severe form is associated with common variants of the hepatobiliary phospholipid transporter ABCB4 gene Gut Gut 2007 2007 56 56 265 265 270 270 16891356 16891356. The gene discussed is ABCB4; the disease is cholestasis.