How representative are clinical study patients with asthma or COPD for a larger “real life” population of patients with obstructive lung disease?

Kjetil Herland(NTNU Samfunnsforskning), Leif Bjermer(Lund University), Jan-Petter Akselsen, Ole Henning Skjønsberg(Oslo University Hospital)
Respiratory Medicine
December 16, 2004
Cited by 317


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