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Effects of surgical and FFP2 masks on cardiopulmonary exercise capacity in patients with heart failure
- Alexander Kogel,
- Pierre Hepp,
- Tina Stegmann,
- Adrienn Tünnemann-Tarr,
- Roberto Falz,
- Patrick Fischer,
- Felix Mahfoud,
- Ulrich Laufs,
- Sven Fikenzer
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- Published: August 23, 2022
- https://doi.org/10.1371/journal.pone.0269470