Funding for this research was provided by:
Swedish Heart-Lung Foundation,
ALF funding from Region Skåne
Received: 6 July 2018
Accepted: 4 February 2019
First Online: 13 February 2019
Ethics approval and consent to participate
: The study was performed according to the principles of the Declaration of Helsinki. All the patients have given their informed written consent before enrollment in the MATS study. The study was approved by the Ethics Committee of Lund University, (LU 237/2007).
: Written informed consents were obtained from all enrolled individuals prior to their participation.
: The authors declare that they have no competing interests.
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