Kelleher, D. L., Mehta, R. S., Jean-Francois, B. M., Preece, A. F., Blowers, J., Crater, G. D., & Thomas, P. (2012). Safety, Tolerability, Pharmacodynamics and Pharmacokinetics of Umeclidinium and Vilanterol Alone and in Combination: A Randomized Crossover Trial. Public Library of Science.

Kelleher, Dennis L., Rashmi S. Mehta, Bernadette M. Jean-Francois, Andrew F. Preece, James Blowers, Glenn D. Crater, i Paul Thomas. Safety, Tolerability, Pharmacodynamics and Pharmacokinetics of Umeclidinium and Vilanterol Alone and in Combination: A Randomized Crossover Trial. Public Library of Science, 2012.

Kelleher, Dennis L., et al. Safety, Tolerability, Pharmacodynamics and Pharmacokinetics of Umeclidinium and Vilanterol Alone and in Combination: A Randomized Crossover Trial. Public Library of Science, 2012.