Ryan, E. J., McNeela, E., Murphy, G. A., Stewart, H., O'hagan, D., Pizza, M., . . . Mills, K. H. G. (1999). Mutants of Escherichia coli Heat-Labile Toxin Act as Effective Mucosal Adjuvants for Nasal Delivery of an Acellular Pertussis Vaccine: Differential Effects of the Nontoxic AB Complex and Enzyme Activity on Th1 and Th2 Cells. American Society for Microbiology (ASM).

Ryan, Elizabeth J., Edel McNeela, Geraldine A. Murphy, Helen Stewart, Derek O'hagan, Mariagrazia Pizza, Rino Rappuoli, và Kingston H. G. Mills. Mutants of Escherichia Coli Heat-Labile Toxin Act As Effective Mucosal Adjuvants for Nasal Delivery of an Acellular Pertussis Vaccine: Differential Effects of the Nontoxic AB Complex and Enzyme Activity On Th1 and Th2 Cells. American Society for Microbiology (ASM), 1999.

Ryan, Elizabeth J., et al. Mutants of Escherichia Coli Heat-Labile Toxin Act As Effective Mucosal Adjuvants for Nasal Delivery of an Acellular Pertussis Vaccine: Differential Effects of the Nontoxic AB Complex and Enzyme Activity On Th1 and Th2 Cells. American Society for Microbiology (ASM), 1999.