Validity of six activity monitors in chronic obstructive pulmonary disease: a comparison with indirect calorimetry.

by Hans Van Remoortel, Yogini Raste, Zafeiris Louvaris, Santiago Giavedoni, Chris Burtin, Daniel Langer, Frederick Wilson, Roberto Rabinovich, Ioannis Vogiatzis, Nicholas S Hopkinson, Thierry Troosters, PROactive consortium
Published 2012