title: OK serogroups and loop-dilating effect of Escherichia coli strains isolated from pigs.
mesh_terms: D000818:Animals; D004106:Dilatation; D004488:Edema Disease of Swine / Q000276:immunology; D004768:Enterotoxins / Q000009:adverse effects; D004927:Escherichia coli Infections / Q000276:immunology / Q000662:veterinary*; D007106:Immune Sera; D007422:Intestines / Q000187:drug effects; D012703:Serotyping; D013552:Swine; D013553:Swine Diseases / Q000276:immunology*
chemical_list: D004768:Enterotoxins; D007106:Immune Sera