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.
Koska AJ 3rd, Kramer WG, Romagnoli A, Keats AS, Sabawala PB.Koska AJ 3rd, et al. Among authors: keats as.Anesth Analg. 1981 Jan;60(1):8-11.Anesth Analg. 1981.PMID: 7192957
Romagnoli A, Keats AS.Romagnoli A, et al. Among authors: keats as.Circulation. 1975 Dec;52(6):1123-7. doi: 10.1161/01.cir.52.6.1123.Circulation. 1975.PMID: 1081018
Romagnoli A, Stafford TB, Keats AS.Romagnoli A, et al. Among authors: keats as.Tex Heart Inst J. 1997;24(1):35-7.Tex Heart Inst J. 1997.PMID: 9068137Free PMC article.