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.
Abdul-Khaliq H, Schmitt B, Rentzsch A, Helweg A, Gutberlet M, Yegitbasi M, Nürnberg JH, Alexi-Meskhishvili V, Hetzer R, Lange PE.Abdul-Khaliq H, et al. Among authors: hetzer r.Z Kardiol. 2003 Apr;92(4):319-25. doi: 10.1007/s00392-003-0911-x.Z Kardiol. 2003.PMID: 12707791German.
Hausdorf G, Schneider M, Schirmer KR, Uhlemann F, Will JC, Loebe M, Hetzer R, Lange PE.Hausdorf G, et al. Among authors: hetzer r.Z Kardiol. 1993 Feb;82(2):123-30.Z Kardiol. 1993.PMID: 8465565German.
Bauer M, Siniawski H, Bauer U, Gülmez H, Knollmann F, Lange PE, Hetzer R.Bauer M, et al. Among authors: hetzer r.Z Kardiol. 2000 Aug;89(8):702-5. doi: 10.1007/s003920070199.Z Kardiol. 2000.PMID: 11013976German.