Protocol for an observational study to identify potential predictors of an acute exacerbation in patients with chronic obstructive pulmonary disease (the PACE Study)
Klaus Kenn, Rainer Gloeckl, Daniela Leitl, Tessa Schneeberger, Inga Jarosch, Wolfgang Hitzl, Peter Alter, Bernd Sczepanski, Sandra Winterkamp, Martina Boensch, Carmen Schade-Brittinger, Chrysanthi Skevaki, Olaf Holz, Paul W Jones, Claus F Vogelmeier, Andreas R Koczulla
BMJ Open Feb 2021, 11 (2) e043014; DOI: 10.1136/bmjopen-2020-043014