00558nas a2200205 4500000000100000000000100001008004100002100001300043700002000056700001300076700001400089700001500103700001300118700001200131700001500143245016200158300001200320490000600332022001400338 2016 d1 aE. Moore1 aL. Chatzidiakou1 aR. Jones1 aL. Smeeth1 aS. Beevers1 aF. Kelly1 aQuint J1 aB. Barratt00aLinking e-health records, patient-reported symptoms and environmental exposure data to characterise and model COPD exacerbations: protocol for the COPE study ae0113300 v6 a2044-6055