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Petru, R., Ochmann, U. & Nowak, D. Letter to the editors referring to Fikenzer, S., Uhe, T., Lavall, D., Rudolph, U., Falz, R., Busse, M., Hepp, P., & Laufs, U. (2020). Effects of surgical and FFP2/N95 face masks on cardiopulmonary exercise capacity. Clinical Research in Cardiology. Clin Res Cardiol 109, 1598–1599 (2020). https://doi.org/10.1007/s00392-020-01735-5
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DOI: https://doi.org/10.1007/s00392-020-01735-5