Schwarze J, Cieslewicz G, Joetham A, Ikemura T, M?kel? MJ, Dakhama A, Shultz LD, Lamers MC, Gelfand EW. Critical roles for interleukin-4 and interleukin-5 during respiratory syncytial virus infection in the development of airway hyperresponsiveness after airway sensitization. Am J Respir Crit Care Med. 2000 Aug; 162(2 Pt 1):380-6.