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Leandro Machado

Catholic University of Brazil (UCB)

Professor

SGAN 916, Modulo B, Asa Norte

Brasília, DF 70790-160

Brazil

http://www.drleandromachado.com.br

  • Catholic University of Brazil (UCB)

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    • Tel: +5561982561100
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Discovery: The Use of the N9/PFF2/KF94 Filter Mask by 100% of the South Korean Herd Has Saved Thousands of Lives on COVID-19.

Number of pages: 18 Posted: 23 Dec 2020
Leandro Machado, Sara Duarte Gutierrez, Vitória Amaral Araujo Barcelos, Pedro Igor Portela Aguiar, André Aureliano Moreira Marques and Ana Luiza Pinheiro
Catholic University of Brazil (UCB), Catholic University of Brazil (UCB), Catholic University of Brazil (UCB), Catholic University of Brazil (UCB), Catholic University of Brazil (UCB) and Catholic University of Brazil (UCB)
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N95 facemask, South Korea COVID-19, Protocol use N95 all herd, Mandatory use face mask, USA COVID-19, Comparison of mask efficiency