title: Improving renal function in obstructive jaundice without preoperative drainage.
mesh_terms: D002779:Cholestasis / Q000628:therapy*; D002986:Clinical Trials as Topic; D004322:Drainage; D006801:Humans; D007668:Kidney / Q000503:physiopathology*; D011300:Preoperative Care; D011897:Random Allocation