Bias in retrospective studies of trends in asthma incidence

J. Brogger, T. Eagan, A. Gulsvik, B. Per (Bergen, Norway)

Source: Annual Congress 2003 - Epidemiology of asthma in adults
Session: Epidemiology of asthma in adults
Session type: Thematic Poster Session
Number: 1903
Disease area: Airway diseases

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Citations should be made in the following way:
J. Brogger, T. Eagan, A. Gulsvik, B. Per (Bergen, Norway). Bias in retrospective studies of trends in asthma incidence. Eur Respir J 2003; 22: Suppl. 45, 1903

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