Cnattingius, Sven
Källén, Karin
Sandström, Anna
Rydberg, Henny
Månsson, Helena
Stephansson, Olof
Frisell, Thomas
Ludvigsson, Jonas F. http://orcid.org/0000-0003-1024-5602
Funding for this research was provided by:
Karolinska Institute
Article History
Received: 30 August 2022
Accepted: 15 November 2022
First Online: 3 January 2023
Declarations
:
: Dr Ludvigsson has coordinated a study on behalf of the Swedish IBD quality register (SWIBREG). That study received funding from Janssen corporation. The other authors declare no conflict of interest.
: All procedures performed in studies involving human participants were in accordance with the ethical standards of the institutional and/or national research committee and with the 1964 Helsinki declaration and its later amendments or comparable ethical standards. For this type of study formal consent is not required.