Respiratory syncytial virus and other respiratory viral infections in older adults with moderate to severe influenza-like illness. - Falsey AR; McElhaney JE; Beran J; van Essen GA; Duval X; Esen M; Galtier F; Gervais P; Hwang SJ; Kremsner P; Launay O; Leroux-Roels G; et al. (The Journal of infectious diseases, 2014)