Beyond clinical trials: Evolutionary and epidemiological considerations for development of a universal influenza vaccine. - Viboud, Cécile; Gostic, Katelyn; Nelson, Martha I.; Price, Graeme E.; Perofsky, Amanda; Sun, Kaiyuan; Sequeira Trovão, Nídia; Cowling, Benjamin J.; Epstein, Suzanne L.; Spiro, David J. (PLoS Pathogens, 2020)