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In the article that appeared on page 219 of the July/August issue, the figures that appeared in the print issue were unreadable as a result of low-resolution figure files being supplied to the printer. The online version of the article includes readable, high-resolution figures, and the article has been reprinted below in its entirety with high-resolution figures in place.




Fregonezi G, Resqueti V, Vigil L, Calaf N, Casan P Maximal oxygen uptake cannot be estimated from resting lung function and submaximal exercise in patients with chronic obstructive pulmonary disease. J Cardiopulm Rehabil Prev. 2012;32(4):219-225.