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

Year Number of Results
2016 1
2017 1
2018 6
2019 5
2020 7
2021 13
2022 5
2023 7
2024 3

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Page 1
Aerosol Generation during Spirometry.
Helgeson SA, Lim KG, Lee AS, Niven AS, Patel NM. Helgeson SA, et al. Ann Am Thorac Soc. 2020 Dec;17(12):1637-1639. doi: 10.1513/AnnalsATS.202005-569RL. Ann Am Thorac Soc. 2020. PMID: 32870021 Free PMC article. No abstract available.
Particle generation during positive airway pressure therapy.
Helgeson SA, Lim KG, Patel NM, Lee AS, Niven AS, Cheung J. Helgeson SA, et al. Sleep Med. 2021 Aug;84:82-85. doi: 10.1016/j.sleep.2021.05.008. Epub 2021 May 18. Sleep Med. 2021. PMID: 34126400 Free PMC article. No abstract available.
The Effect of the COVID-19 Pandemic on Pulmonary Diagnostic Procedures.
Call JT, Lee AS, Haendel MA, Chute CG, Helgeson SA. Call JT, et al. Among authors: helgeson sa. Ann Am Thorac Soc. 2022 Apr;19(4):695-697. doi: 10.1513/AnnalsATS.202108-943RL. Ann Am Thorac Soc. 2022. PMID: 34788203 Free PMC article. No abstract available.
Facemasks and Walk Distance in Pulmonary Arterial Hypertension Patients.
Helgeson SA, Burger CD, Moss JE, Zeiger TK, Taylor BJ. Helgeson SA, et al. Mayo Clin Proc Innov Qual Outcomes. 2021 Aug 25;5(5):835-838. doi: 10.1016/j.mayocpiqo.2021.08.003. eCollection 2021 Oct. Mayo Clin Proc Innov Qual Outcomes. 2021. PMID: 34485828 Free PMC article.
44 results