Age-related changes in immunity: implications for vaccination in the elderly.Published in:Expert Reviews in Molecular Medicine, 2007, v. 9, n. 3, p. 1, doi. 10.1017/S1462399407000221By:Kovaiou, Rania D.;Herndler-Brandstetter, Dietmar;Grubeck-Loebenstein, BeatrixPublication type:Article