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    • Comorbidities in an asthma population 8-29 years old: a study from the Norwegian Prescription Database 

      Karlstad, Øystein; Nafstad, Per; Tverdal, Aage; Skurtveit, Svetlana; Furu, Kari (Journal article; Tidsskriftartikkel; Peer reviewed, 2011-09-23)
      Purpose: To examine occurrence of chronic diseases and antimicrobial treatment in an asthma population 8-29 years old, compared to the general population. Methods: In this cross-sectional study, the asthma population was identified from the general population (retrieved from a census covering the entire Norwegian population) by using filled prescriptions on asthma drugs as a proxy measure of ...