Barrett, B., Brown, R., Rakel, D., Rabago, D., Marchand, L., Scheder, J., . . . Barlow, S. (2011). Placebo Effects and the Common Cold: A Randomized Controlled Trial. American Academy of Family Physicians.

Barrett, Bruce, Roger Brown, Dave Rakel, David Rabago, Lucille Marchand, Jo Scheder, Marlon Mundt, Gay Thomas, and Shari Barlow. Placebo Effects and the Common Cold: A Randomized Controlled Trial. American Academy of Family Physicians, 2011.

Barrett, Bruce, et al. Placebo Effects and the Common Cold: A Randomized Controlled Trial. American Academy of Family Physicians, 2011.