An official website of the United States government
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.
Heger U, Voss S, Knebel P, Doerr-Harim C, Neudecker J, Schuhmacher C, Faist E, Diener MK, Kieser M, Seiler CM, Büchler MW.Heger U, et al. Among authors: schuhmacher c.Trials. 2011 Nov 21;12:245. doi: 10.1186/1745-6215-12-245.Trials. 2011.PMID: 22103965Free PMC article.Clinical Trial.
Löffler T, Seiler CM, Rossion I, Kijak T, Thomusch O, Hodina R, Krüger M, Simon T, Bruckner T, Kieser M, Büchler MW, Weitz J; HASTA Trial Group.Löffler T, et al.Trials. 2011 Feb 8;12:34. doi: 10.1186/1745-6215-12-34.Trials. 2011.PMID: 21303515Free PMC article.Clinical Trial.