The Validity of Danish Prescription Data to Measure Use of Aspirin and Other Non-Steroidal Anti-Inflammatory Drugs and Quantification of Bias Due to Non-Prescription Drug Use

by Gaster N, Hallas J, Pottegård A, Friis S, Schmidt M
Published 2021-07-01

Congenital Malformations in Denmark: Considerations for the Use of Danish Health Care Registries

by Broe A, Damkier P, Pottegård A, Hallas J, Bliddal M
Published 2020-12-01

Prescription duration and treatment episodes in oral glucocorticoid users: application of the parametric waiting time distribution

by Laugesen K, Støvring H, Hallas J, Pottegård A, Jørgensen JOL, Sørensen HT, Petersen I
Published 2017-11-01

Intracerebral hemorrhage: positive predictive value of diagnosis codes in two nationwide Danish registries

by Hald SM, Kring Sloth C, Hey SM, Madsen C, Nguyen N, García Rodríguez LA, Al-Shahi Salman R, Möller S, Poulsen FR, Pottegård A, Gaist D
Published 2018-08-01

A cohort study on the risk of lymphoma and skin cancer in users of topical tacrolimus, pimecrolimus, and corticosteroids (Joint European Longitudinal Lymphoma and Skin Cancer Eval...

by Castellsague J, Kuiper JG, Pottegård A, Anveden Berglind I, Dedman D, Gutierrez L, Calingaert B, van Herk-Sukel MP, Hallas J, Sundström A, Gallagher AM, Kaye JA, Pardo C, Rothman KJ, Perez-Gutthann S
Published 2018-03-01

Existing Data Sources in Clinical Epidemiology: The Danish COVID-19 Cohort

by Pottegård A, Kristensen KB, Reilev M, Lund LC, Ernst MT, Hallas J, Thomsen RW, Christiansen CF, Sørensen HT, Johansen NB, Støvring H, Christensen S, Kragh Thomsen M, Husby A, Voldstedlund M, Kjær J, Brun NC
Published 2020-08-01