Funding for this research was provided by:
the Danish Coucil for Independent Research, medical sciences (4004-00352B_FSS, 8020-00123B_FSS)
the Novo Nordisk Foundation (NNF15OC00017734, NNF17OC0029404)
Received: 16 May 2019
Accepted: 28 October 2019
First Online: 15 November 2019
Ethics approval and consent to participate
: The study was performed in accordance with the Helsinki Declaration II, and approved by the Regional Scientific Ethical Committee for Southern Denmark (Project ID S-20090130).
: Not applicable.
: The authors declare that they have no competing interests.