Skip to main page content
U.S. flag

An official website of the United States government

Dot gov

The .gov means it’s official.
Federal government websites often end in .gov or .mil. Before sharing sensitive information, make sure you’re on a federal government site.

Https

The site is secure.
The https:// ensures that you are connecting to the official website and that any information you provide is encrypted and transmitted securely.

Access keys NCBI Homepage MyNCBI Homepage Main Content Main Navigation

Search Page

Filters

My Custom Filters

Publication date

Text availability

Article attribute

Article type

Additional filters

Article Language

Species

Sex

Age

Other

Search Results

404 results

Filters applied: . Clear all
Results are displayed in a computed author sort order. The Publication Date timeline is not available.
Page 1
Gastrointestinal bleeding and endoscopic findings in critically and non-critically ill patients with corona virus disease 2019 (COVID-19): Results from Lean European Open Survey on SARS-CoV-2 (LEOSS) and COKA registries.
Zellmer S, Hanses F, Muzalyova A, Classen J, Braun G, Piepel C, Erber J, Pilgram L, Walter L, Göpel S, Wille K, Hower M, Rüthrich MM, Rupp J, Degenhardt C, Voigt I, Borgmann S, Stecher M, Jakob C, Dhillon C, Messmann H, Ebigbo A, Römmele C; LEOSS study group. Zellmer S, et al. Among authors: classen j. United European Gastroenterol J. 2021 Nov;9(9):1081-1090. doi: 10.1002/ueg2.12165. Epub 2021 Oct 15. United European Gastroenterol J. 2021. PMID: 34655180 Free PMC article.
[Impact of Covid 19 on endoscopy in Germany].
Kahn M, Zellmer S, Ebigbo A, Muzalyova A, Classen J, Grünherz V, Böser J, Breitling LP, Beyer A, Rosendahl J, Lammert F, Traidl-Hoffmann C, Messmann H, Römmele C. Kahn M, et al. Among authors: classen j. Z Gastroenterol. 2021 Dec;59(12):1278-1287. doi: 10.1055/a-1649-8184. Epub 2021 Oct 22. Z Gastroenterol. 2021. PMID: 34687033 German.
Statistical biases due to anonymization evaluated in an open clinical dataset from COVID-19 patients.
Koll CEM, Hopff SM, Meurers T, Lee CH, Kohls M, Stellbrink C, Thibeault C, Reinke L, Steinbrecher S, Schreiber S, Mitrov L, Frank S, Miljukov O, Erber J, Hellmuth JC, Reese JP, Steinbeis F, Bahmer T, Hagen M, Meybohm P, Hansch S, Vadász I, Krist L, Jiru-Hillmann S, Prasser F, Vehreschild JJ; NAPKON Study Group. Koll CEM, et al. Sci Data. 2022 Dec 21;9(1):776. doi: 10.1038/s41597-022-01669-9. Sci Data. 2022. PMID: 36543828 Free PMC article.
Antigen-specific T helper cells and cytokine profiles predict intensity and longevity of cellular and humoral responses to SARS-CoV-2 booster vaccination.
Page L, Dennehy K, Mueller K, Girl P, Loell E, Buijze H, Classen JM, Messmann H, Roemmele C, Hoffmann R, Wurster S, Fuchs A. Page L, et al. Among authors: classen jm. Front Immunol. 2024 Aug 29;15:1423766. doi: 10.3389/fimmu.2024.1423766. eCollection 2024. Front Immunol. 2024. PMID: 39267758 Free PMC article.
404 results