Relationship between anxiety and dyspnea on exertion in patients with chronic obstructive pulmonary disease.
de Voogd
Jacob N
JN
Center for Rehabilitation, University Medical Center Groningen, University of Groningen, Haren, RA, The Netherlands. j.n.de.voogd@cvr.umcg.nl
Sanderman
Robbert
R
Postema
Klaas
K
van Sonderen
Eric
E
Wempe
Johan B
JB