title: Countercurrent controversy.
mesh_terms: D000818:Animals; D006801:Humans; D007410:Intestinal Diseases / Q000209:etiology* / Q000503:physiopathology; D007421:Intestine, Small / Q000098:blood supply*; D007511:Ischemia / Q000209:etiology* / Q000503:physiopathology; D008833:Microcirculation; D008954:Models, Biological; D051381:Rats; D012039:Regional Blood Flow; D012771:Shock, Hemorrhagic / Q000150:complications / Q000503:physiopathology*