This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Medicine
Which of the following is not an autoimmune disorder? 
Select and explain. 
A. Ulcerative colitis, B. Grave's disease, C. Rheumatoid ahritis, D. SLE
A: Ulcerative colitis
Answer: A: Ulcerative colitis 
Explanation: Ans: A. Ulcerative colitis(Ref Harrison 19/e p377, 18/e p2723)Autoimmune Diseases Organ SpecificOrgan Nonspecific (Systemic)Grave's diseaseVitiligoSystemic lupus erythematosusHashimoto's thyroiditisAutoimmune hemolytic anemiaRheumatoid ahritisAutoimmune polyglandular syndromeAutoimmune thrombocytopenic purpuraSystemic necrotizing vasculitisType 1 diabetes mellitusPernicious anemiaGranulomatosis with polyangitisInsulin-resistant diabetes mellitusMyasthenia gravis(Wegener's)Immune-mediated infeilityMultiple sclerosisAntiphospholipid syndromeAutoimmune Addison's diseaseGuillain-Barre syndromeSjogren's syndromPemphigus vulgarisStiff-man syndrome Pemphigus foliaceusAcute rheumatic fever Dermatitis herpetiformisSympathetic ophthalmia Autoimmune alopeciaGoodpasture's syndrome