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Table representation of search results timeline featuring number of search results per year.

Year Number of Results
2006 1
2007 1
2008 2
2009 2
2010 3
2011 3
2012 5
2013 4
2014 2
2015 2
2016 4
2017 5
2018 3
2019 3
2020 8
2021 2
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Page 1
The use of exhaled nitric oxide and peak expiratory flow to demonstrate improved breathability and antimicrobial properties of novel face mask made with sustainable filter paper and Folium Plectranthii amboinicii oil: additional option for mask shortage during COVID-19 pandemic.
Duong-Quy S, Ngo-Minh X, Tang-Le-Quynh T, Tang-Thi-Thao T, Nguyen-Quoc B, Le-Quang K, Tran-Thanh D, Doan-Thi-Quynh N, Canty E, Do T, Craig T. Duong-Quy S, et al. Multidiscip Respir Med. 2020 Jun 1;15(1):664. doi: 10.4081/mrm.2020.664. eCollection 2020 Jan 28. Multidiscip Respir Med. 2020. PMID: 32549983 Free PMC article.
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