Funding for this research was provided by:
Received: 17 September 2019
Accepted: 1 April 2020
First Online: 25 April 2020
Ethics approval and consent to participate
: Experiments were performed in accordance with the most recent Helsinki declaration and all patients gave written informed consent. The study design was approved by the Regional Ethics Review Board in Lund (411/2006), Lund University, Lund, Sweden.
: Not applicable. No subject is identifiable by the data presented in the figures and tables.
: The authors declare that they have no competing interests.