A snapshot of exhaled nitric oxide and asthma characteristics: experience from high to low income countries Patrizia Pignatti; Dina Visca; Stelios Loukides; Anne-Grete Märtson; Jan-Willem C. Alffenaar; Giovanni Battista Migliori; Antonio Spanevello;

Influenza vaccination in older adults and patients with chronic disorders: A position paper from the Portuguese Society of Pulmonology, the Portuguese Society of Cardiology, the Portuguese Society of Diabetology, the Portuguese Society of Infectious Diseases and Clinical Microbiology, the Portuguese Society of Geriatrics and Gerontology, and the Study Group of Geriatrics of the Portuguese Society of Internal Medicine F. Froes; A. Timóteo; B. Almeida; J.F. Raposo; J. Oliveira; M. Carrageta; S. Duque; A. Morais;

COPD: How can evidence from randomised controlled trials apply to patients treated in everyday clinical practice? Ant..nio Duarte-de-Ara..jo; Pedro Teixeira; Venceslau Hespanhol; Jaime Correia-de-Sousa;