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.


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

My NCBI Filters
Text availability
Article attribute
Article type
Publication date

Search Results

141 results
Filters applied: . Clear all Results are displayed in a computed author sort order. Results by year timeline is unavailable
Page 1
A randomized trial comparing electronic and conventional stethoscopes.
Iversen K, Greibe R, Timm HB, Skovgaard LT, Dalsgaard M, Hendriksen KV, Hrobjartsson A. Iversen K, et al. Among authors: hrobjartsson a. Am J Med. 2005 Nov;118(11):1289. doi: 10.1016/j.amjmed.2005.06.016. Am J Med. 2005. PMID: 16271920 Clinical Trial. No abstract available.
Effect of teaching and type of stethoscope on cardiac auscultatory performance.
Iversen K, Søgaard Teisner A, Dalsgaard M, Greibe R, Timm HB, Skovgaard LT, Hróbjartsson A, Copenhagen O, Copenhagen S, Copenhagen K. Iversen K, et al. Among authors: hrobjartsson a. Am Heart J. 2006 Jul;152(1):85.e1-7. doi: 10.1016/j.ahj.2006.04.013. Am Heart J. 2006. PMID: 16824835 Clinical Trial.
Placebo interventions for all clinical conditions.
Hróbjartsson A, Gøtzsche PC. Hróbjartsson A, et al. Cochrane Database Syst Rev. 2004;(3):CD003974. doi: 10.1002/14651858.CD003974.pub2. Cochrane Database Syst Rev. 2004. PMID: 15266510 Updated. Review.
141 results