- Correspondence to Dr Gorm Mørk Hansen, Herlev-Gentofte University Hospital, Medical Department O, Respiratory Section; Herlev-Gentofte University Hospital, Department of Cardiology, Copenhagen 2730, Denmark;
- Received November 9, 2018
- Revised May 2, 2019
- Accepted May 3, 2019
- First published June 17, 2019.
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