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Olsen, Sonja J., Eduardo Azziz-Baumgartner, Alicia P. Budd, Lynnette Brammer, Sheena Sullivan, Rodrigo F. Pineda, Cheryl Cohen, i Alicia M. Fry. "Decreased Influenza Activity During the COVID-19 Pandemic—United States, Australia, Chile, and South Africa, 2020." Am J Transplant 2020.

Olsen, Sonja J., et al. "Decreased Influenza Activity During the COVID-19 Pandemic—United States, Australia, Chile, and South Africa, 2020." Am J Transplant 2020.