N-acetylcysteine Treatment in Chronic Obstructive Pulmonary Disease (COPD) and Chronic Bronchitis/Pre-COPD: Distinct Meta-analyses Alberto Papi; Franco Alfano; Tommaso Bigoni; Lorenzo Mancini; Amal Mawass; Federico Baraldi; Cristina Aljama; Marco Contoli; Marc Miravitlles;

When and When Not to Prescribe Home Oxygen in COPD Yves Lacasse; François Maltais;

Global Initiative for Chronic Obstructive Lung Disease 2023 Report: GOLD Executive Summary Alvar Agustí; Bartolome R. Celli; Gerard J. Criner; David Halpin; Antonio Anzueto; Peter Barnes; Jean Bourbeau; MeiLan K. Han; Fernando J. Martinez; Maria Montes de Oca; Kevin Mortimer; Alberto Papi; Ian Pavord; Nicolas Roche; Sundeep Salvi; Don D. Sin; Dave Singh; Robert Stockley; M. Victorina López Varela; Jadwiga A. Wedzicha; Claus F. Vogelmeier;