Diagnostic spirometry in COPD is increasing, a comparison of two Swedish cohorts by Åsa Athlin, Karin Lisspers, Mikael Hasselgren, Björn Ställberg, Christer Janson, Scott Montgomery, Maaike Giezeman, Marta Kisiel, Anna Nager, Hanna Sandelowsky, Mats Arne, Josefin Sundh

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