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Paper published by Dr Gunnar Lauge Nielsen:


Original Research

Validity of asthma diagnoses in the Danish National Registry of Patients, including an assessment of impact of misclassification on risk estimates in an actual dataset

Annette Østergaard Jensen, Gunnar Lauge Nielsen, Vera Ehrenstein

Clinical Epidemiology 2010, 2:67-72

Published Date: 22 April 2010