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Lu X, Clements JD, Katz JM. Mutant Escherichia coli heat-labile enterotoxin [LT(R192G)] enhances protective humoral and cellular immune responses to orally administered inactivated influenza vaccine. Vaccine. 2002 Jan 15;20(7-8):1019–29. doi: 10.1016/s0264-410x(01)00452-2. PMID: 11803061. |