Spillane, S., Usher, C., Bennett, K., Adams, R., & Barry, M. (2015). Introduction of generic substitution and reference pricing in Ireland: Early effects on state pharmaceutical expenditure and generic penetration, and associated success factors. J Pharm Policy Pract.

Spillane, Susan, Cara Usher, Kathleen Bennett, Roisin Adams, and Michael Barry. "Introduction of Generic Substitution and Reference Pricing in Ireland: Early Effects On State Pharmaceutical Expenditure and Generic Penetration, and Associated Success Factors." J Pharm Policy Pract 2015.

Spillane, Susan, et al. "Introduction of Generic Substitution and Reference Pricing in Ireland: Early Effects On State Pharmaceutical Expenditure and Generic Penetration, and Associated Success Factors." J Pharm Policy Pract 2015.