Invasive Serotype 35B Pneumococci Including an Expanding Serotype Switch Lineage oleh Liset Olarte, Sheldon L. Kaplan, William J. Barson, José R. Romero, Philana Ling Lin, Tina Q. Tan, Jill A. Hoffman, John S. Bradley, Laurence B. Givner, Edward O. Mason, Kristina G. Hultén