Funding for this research was provided by:
Elsass Fonden (5269)
Det Sundhedsvidenskabelige Fakultet, Københavns Universitet (620-0032/14-3000)
Bevica Fonden (Not available)
NovoNordic Foundation (Not available)
Received: 14 December 2017
Accepted: 18 May 2018
First Online: 31 May 2018
Ethics approval and consent to participate
: Informed consent of all participants in DNBC and MoBa was obtained. DNBC and the register-linkage were according to Danish legislation approved by the Danish Data Protection Agency. The establishment of data collection in Moba has obtained licence from the Norwegian Data Inspectorate and approval from the Regional Committee of Medical Research Ethics. All consents were written.
: The authors declare that they have no competing interests.
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