title: New strains of bacteria and exacerbations of COPD.
authors.forename: Paul
authors.initials: P
authors.lastname: Bresser
authors.forename: Loek
authors.initials: L
authors.lastname: van Alphen
authors.forename: René
authors.initials: R
authors.lastname: Lutter
mesh_terms: D001419:Bacteria / Q000145:classification* / Q000302:isolation & purification; D006193:Haemophilus influenzae / Q000145:classification* / Q000302:isolation & purification; D006801:Humans; D029424:Pulmonary Disease, Chronic Obstructive / Q000382:microbiology*; D013183:Sputum / Q000382:microbiology