RT Journal Article SR Electronic T1 Circulating desmosine as a biomarker of azithromycin treatment response: a post hoc analysis of the COLUMBUS randomised controlled trial JF ERJ Open Research JO erjor FD European Respiratory Society SP 00136-2018 DO 10.1183/23120541.00136-2018 VO 4 IS 4 A1 James D. Chalmers A1 Remco S. Djamin A1 Marjolijn Schouten A1 Holly R. Keir A1 Brandon Tan A1 Joachim G.J.V. Aerts A1 Jeffrey T-J. Huang A1 Menno van der Eerden YR 2018 UL http://openres.ersjournals.com/content/4/4/00136-2018.abstract AB