Funding for this research was provided by:
Text and Data Mining valid from 2018-09-21
Received: 1 August 2018
Accepted: 28 August 2018
First Online: 21 September 2018
Ethics approval and consent to participate
: The data were collected from Internal quality control registry on treatment of patients with valvular heart disease with or without coronary artery disease, No 2014/17280, Oslo University Hospital, Ullevål.
: Not applicable.
: The authors declare that they have no competing interests.
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