(Q34057313)
Statements
Health status in COPD cannot be measured by the St George's Respiratory Questionnaire alone: an evaluation of the underlying concepts of this questionnaire (English)
Leonie Daudey
Johan Molema
P N Richard Dekhuijzen
Judith B Prins
Yvonne F Heijdra
Jan H Vercoulen
22 July 2010
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