HLA-DRB1 Alleles are Associated With COPD in a Latin American Admixed Population Roberto Díaz-Peña; Rafael S. Silva; H. Dean Hosgood; Sergio Jaime; Marc Miravitlles; Jordi Olloquequi;

Mucus Plugs as Precursors to Exacerbation and Lung Function Decline in COPD Patients Kwang Nam Jin; Hyo Jin Lee; Heemoon Park; Jung-Kyu Lee; Eun Young Heo; Deog Kyeom Kim; Hyun Woo Lee;

Short and Long-Term Impact of COVID-19 Infection on Previous Respiratory Diseases Eusebi Chiner-Vives; Rosa Cordovilla-Pérez; David de la Rosa-Carrillo; Marta García-Clemente; José Luis Izquierdo-Alonso; Remedios Otero-Candelera; Luis Pérez-de Llano; Jacobo Sellares-Torres; José Ignacio de Granda-Orive;