Physiologic limitations during daily life activities in COPD patients.
Lahaije
A J M C
AJ
Radboud University Nijmegen Medical Centre, Dept. of Pulmonary Diseases, Nijmegen, The Netherlands. A.Lahaije@LONG.umcn.nl
van Helvoort
H A C
HA
Dekhuijzen
P N R
PN
Heijdra
Y F
YF