Guedes, R M C Relationship between the severity of porcine proliferative enteropathy and the infectious dose of Lawsonia intracellularis. [electronic resource] - The Veterinary record Oct 2003 - 432-3 p. digital Publication Type: Clinical Trial; Journal Article; Randomized Controlled Trial; Research Support, Non-U.S. Gov't ISSN: 0042-4900 Standard No.: 10.1136/vr.153.14.432 doi Subjects--Topical Terms: AnimalsAnimals, NewbornDesulfovibrionaceae Infections--microbiologyEnteritis--microbiologyLawsonia Bacteria--isolation & purificationSeverity of Illness IndexSwineSwine Diseases--microbiology