Linking e-health records, patient-reported symptoms and environmental exposure data to characterise and model COPD exacerbations: protocol for the COPE study

od Moore, Elizabeth, Chatzidiakou, Lia, Jones, Roderic L, Smeeth, Liam, Beevers, Sean, Kelly, Frank J, K Quint, Jennifer, Barratt, Benjamin
Izdano u BMJ Open (2016)