1. Chen H, Qi X, Ma J, Zhang C, Feng H, Yao M. Breath-borne VOC Biomarkers for COVID-19. medRxiv. 2020 Jun 24;2020.06.21.20136523.
2. Astrotech subsidiary and Cleveland. clinic sign agreement for breath analysis [Internet]. astrotechcorp. [cited 2021 Jun 2]. Available from: https://www.astrotechcorp.com/2021-04-07-press-release.
3. megan.rodriguez@theeagle.com MR. Texas A&M System partnership develops COVID-19 breath test [Internet]. The Eagle. [cited 2021 Jun 2]. Available from: https://theeagle.com/news/a_m/texas-a-m-system-partnership-develops-covid-19-breath-test/article_98cd7a72-2a72-11eb-a19d-27af8367f334.html.
4. Jiun-Lih Lin, Paul ST. Perspectives of oxidative stress and it’s measurement in Chronic Obstructive Pulmonary Disease. Jrl of Chronic Obstructive Pulmonary Disease. 2010; 7:4, 291–306.
5. Integrate Breath Biopsy into your COVID-19 research [Internet]. [cited 2021 Jun 2]. Available from: https://www.owlstonemedical.com/breath-biopsy-covid-19-research/.