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.
Zingg U, Hofer CK, Seifert B, Metzger U, Zollinger A.Zingg U, et al. Among authors: hofer ck.Dis Esophagus. 2007;20(5):399-405. doi: 10.1111/j.1442-2050.2007.00690.x.Dis Esophagus. 2007.PMID: 17760653
Hofer CK, Zollinger A, Tucci M, van Gessel E, Alon E, Klaghofer R.Hofer CK, et al.Eur J Anaesthesiol. 2002 Dec;19(12):894-6. doi: 10.1017/s0265021502211436.Eur J Anaesthesiol. 2002.PMID: 12510909No abstract available.
Hofer CK, Lang D, Suhner M, Straumann E, Zollinger A.Hofer CK, et al.Anaesthesist. 2003 Apr;52(4):326-8. doi: 10.1007/s00101-003-0457-3.Anaesthesist. 2003.PMID: 12715135German.