This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: JIPMER 2017, Subject name: Pharmacology
[{'content': 'The risk of carbamazepine induced Stevens-Johnson syndrome is increased in the presence of which of the following genes? \nSelect and explain. \nA. HLA-B* 5801, B. HLA-B* 1502, C. HLA-B* 5701, D. HLA-B 27', 'role': 'user'}, {'content': 'Answer: B \nExplanation: HLA DRUG DISEASE B1502 CARBAMAZEPINE STEVEN JOHNSON SYNDROME B5801 ALLOPURINOL SKIN REACTION B5701 ABACAVIR MI B53 MALARIA PROTECTION B27 ANKYLOSING SPONDYLITIS', 'role': 'assistant'}]