Impact of the 23-valent pneumococcal polysaccharide vaccination in pregnancy against infant acute lower respiratory infections in the Northern Territory of Australia oleh Michael J. Binks, Sarah A. Moberley, Anne Balloch, Amanda J. Leach, Sandra Nelson, Kim M. Hare, Cate Wilson, Jane Nelson, Peter S. Morris, Robert S. Ware, Mimi L. K. Tang, Paul J. Torzillo, Jonathan R. Carapetis, Kim Mulholland, Ross M. Andrews