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ORIGINAL RESEARCH https://doi.org/10.4209/aaqr.2020.07.0403 Aerosol and Air Quality Research Effect of Wearing Face Masks on the Carbon Dioxide Concentration in the Breathing Zone Otmar Geiss* Special Issue:
https://www.caja-pdf.es/2021/09/22/anexo4otmargeiss/
22/09/2021 www.caja-pdf.es
Letters RESEARCH LETTER Experimental Assessment of Carbon Dioxide Content in Inhaled Air With or Without Face Masks in Healthy Children:
https://www.caja-pdf.es/2021/09/11/anexo4jamapublicacion/
11/09/2021 www.caja-pdf.es
Facemasks can be medical and non-medical, where two types of the medical masks primarily used by healthcare workers [1], [2].
https://www.caja-pdf.es/2021/09/11/anexo3facemasks-in-the-covid/
11/09/2021 www.caja-pdf.es
BOLIVIA Re-Election of President Evo Morales 2010 1.50 B 9 B Indigenous Rebellion 2010 Pyrenees-Andes Flight Ibsens, Political Prisoners 2010 2010 1.50 B 9 B 3 B Global Warming 2010 2.50 B 10 B Bolivian Traditions 2010 1.50 B 10.50 B BOLIVIA Masks 2010 1 B 2 B 9 B 10 B Flowers 2010 1.50 B P AIR Army Anniversary 2010 3.50 B 9 B Youth Olympics 2010 2 B 9 B BOLIVIA Cochabamba Bicentenary 2010 Spanish Rule Rebellion Military Engineering School 2010 2010 9B 5 B 7 B America Issue 2010 S ETENANT P AIR Endangered Species 2010 1 B 2B 2.50 B 3.50 B BOLIVIA Spanish Rule Rebellion 2010 3.50 B Woodcut 2010 2 B Christmas 2010 3 B 9 B
https://www.caja-pdf.es/2014/10/01/bolivia-2010/
01/10/2014 www.caja-pdf.es
murals, masks, face painting, juggling, plasticine, reading, writing… Board games, debates.
https://www.caja-pdf.es/2013/05/13/folleto-ii-international-summer-camp/
13/05/2013 www.caja-pdf.es
murals, masks, face painting, juggling, plasticine, reading, writing… Board games, debates.
https://www.caja-pdf.es/2013/02/18/la-playa-programas-de-adolescentes/
18/02/2013 www.caja-pdf.es
Harald Walach, de la Universidad de Ciencias Médicas de Poznan (Polonia), y que declaran no tener conflictos de intereses, ha publicado en la Journal of the American Medical Association (JAMA) el 30 de junio de 2021 un artículo titulado “Experimental Assessment of Carbon Dioxide Content in Inhaled Air With or Without Face Masks in Healthy Children:
https://www.caja-pdf.es/2021/09/11/anexo5jama/
11/09/2021 www.caja-pdf.es