Response to Letter to the editors of Hopkins et al.: Effects of surgical and FFP2/N95 face masks on cardiopulmonary exercise capacity: the numbers do not add up Published on 2020-10-092022-10-31 Journal: Clinical Research in Cardiology [키워드] Cardiopulmonary Effect Face mask response surgical [저자] Sven Fikenzer, Ulrich Laufs [Category] Coronavirus, MERS, SARS, PMC URL [DOI] 10.1007/s00392-020-01749-z [Article Type] Letter to the Editors [Source] PMC All Keywords 【제목키워드】 Cardiopulmonary, surgical, response, Face mask, Effect,