Gravar-mail: OBSERVATIONS CONCERNING THE PRODUCTION AND EXCRETION OF CHOLESTEROL IN MAMMALS : V. THE RELATION OF BILIARY RETENTION OF CHOLESTEROL, DISTENTION OF THE BILIARY TRACT, THE SHUNTING OF BILE TO THE VENA CAVA, AND THE REMOVAL OF THE GASTRO-INTESTINAL TRACT TO THE HYPERCHOLESTEREMIA CONSEQUENT ON BILIARY OBSTRUCTION