Short-term mortality after perforated or bleeding peptic ulcer among elderly patients: a population-based cohort study

by Sørensen Henrik T, Nørgaard Mette, Riis Anders, Christensen Steffen, Thomsen Reimar W
Published 2007-04-01

The predictive value of ICD-10 diagnostic coding used to assess Charlson comorbidity index conditions in the population-based Danish National Registry of Patients

by Lash Timothy L, Christensen Steffen, Christiansen Christian F, Thygesen Sandra K, Sørensen Henrik T
Published 2011-05-01

The incidence of interstitial lung disease 1995–2005: a Danish nationwide population-based study

by Wogelius Pia, Pedersen Lars, Grijota Miriam, Christensen Steffen, Kornum Jette B, Beiderbeck Annette, Sørensen Henrik
Published 2008-11-01