D. K. Brandt, Hind, J. A., Robbins, J., Lindblad, A. S., Gensler, G., Gill, G., Baum, H., Lilienfeld, D., Logemann, J. A., Sciences, C., and Group, D. Clinical T.,
“Challenges in the Design and Conduct of a Randomized Study of Two Interventions for Liquid Aspiration”,
Clin Trials, vol. 3, pp. 457-468, 2006.