@article {1551815, editor = {,}, title = {{\textquotedblleft}Can health status questionnaires be used as a measure of physical activity in COPD patients?{\textquotedblright} Heleen Demeyer, Ivan Due{\~n}as-Esp{\'\i}n, Corina De Jong, Zafeiris Louvaris, Miek Hornikx, Elena Gimeno-Santos, Matthias Loeckx, Ioannis Vogiatzis, Wim Janssens, Nich{\textellipsis}}, volume = {49}, number = {2}, elocation-id = {1551815}, year = {2017}, doi = {10.1183/13993003.51815-2015}, publisher = {European Respiratory Society}, issn = {0903-1936}, URL = {https://erj.ersjournals.com/content/49/2/1551815}, eprint = {https://erj.ersjournals.com/content/49/2/1551815.full.pdf}, journal = {European Respiratory Journal} }