Pneumococcal Vaccination in Adults: What Can We Learn From Observational Studies That Evaluated PCV13 and PPV23 Effectiveness in the Same Population? Eileen M. Dunne, Catia Cilloniz, Claire von Mollendorf, Joseph Lewnard, Lindsay R. Grant, Mary P.E. Slack, Luis Jodar, Christian Theilacker, Bradford D. Gessner

Giant Tracheoesophageal Fistula: What to Do When There is Little Else That Can be Done Fernando Revuelta-Salgado, Miguel Jiménez-Gómez, Ricardo García-Luján

New Vaccines for Chronic Respiratory Patients Narmeen Mallah, Ana Dacosta Urbieta, Irene Rivero-Calle, Francisco-Javier Gonzalez-Barcala, Tommaso Bigoni, Alberto Papi, Federico Martinón-Torres