Search Page
Save citations to file
Email citations
Send citations to clipboard
Add to Collections
Add to My Bibliography
Create a file for external citation management software
Your saved search
Your RSS Feed
Filters
Results by year
Table representation of search results timeline featuring number of search results per year.
Year | Number of Results |
---|---|
2005 | 1 |
2020 | 1 |
2022 | 1 |
2024 | 0 |
Search Results
3 results
Results by year
Filters applied: . Clear all
It looks like you are searching for an author.
Results are currently sorted by Best Match. To see the newest results first,
change the sort order to Most Recent.
Page 1
Did you mean
frank helle s
(8 results)?
A multi-layered strategy for COVID-19 infection prophylaxis in schools: A review of the evidence for masks, distancing, and ventilation.
Indoor Air. 2022 Oct;32(10):e13142. doi: 10.1111/ina.13142.
Indoor Air. 2022.
PMID: 36305077
Free PMC article.
Review.
Model Calculations of Aerosol Transmission and Infection Risk of COVID-19 in Indoor Environments.
Lelieveld J, Helleis F, Borrmann S, Cheng Y, Drewnick F, Haug G, Klimach T, Sciare J, Su H, Pöschl U.
Lelieveld J, et al. Among authors: helleis f.
Int J Environ Res Public Health. 2020 Nov 3;17(21):8114. doi: 10.3390/ijerph17218114.
Int J Environ Res Public Health. 2020.
PMID: 33153155
Free PMC article.
Item in Clipboard
Design and field application of an automated cartridge sampler for VOC concentration and flux measurements.
Kuhn U, Dindorf T, Ammann C, Rottenberger S, Guyon P, Holzinger R, Ausma S, Kenntner T, Helleis F, Kesselmeier J.
Kuhn U, et al. Among authors: helleis f.
J Environ Monit. 2005 Jun;7(6):568-76. doi: 10.1039/b500057b. Epub 2005 Apr 27.
J Environ Monit. 2005.
PMID: 15931416
Item in Clipboard
Cite
Cite