This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: C.V.S., Subject name: Pediatrics
[{'content': 'Which of the following drugs is not associated with pure red cell aplasia? \nSelect and explain. \nA. Phenytoin, B. Isoniazid, C. Erythropoietin, D. Chloramphenicol', 'role': 'user'}, {'content': "Answer: C \nExplanation: c. Erythropoietin(Ref: Nelson's 20/e p 2362-2371, Ghai 8/e p 345-347)Classification of pure red cell aplasiaAcquired* Self-limited: Transient erythroblastopenia of childhood* Thymoma* Hereditary: Congenital pure red cell aplasia (Diamond- Blackfan syndrome)Q* Lymphomas: Hodgkin's, or Non Hodgkin's, large granular Lymphoma* Paraneoplastic to solid tumors* Connective tissue disorders: SLE, JRA, RA* Virus: Parvovirus B19Q, hepatitis, HTLV, EBV* Drugs: phenytoin, azathioprine, chloramphenicol, isoniazid* Post ABO incompatible transplantQ", 'role': 'assistant'}]