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.
Mattila I, Takkunen O, Mattila P, Harjula A, Mattila S, Merikallio E.Mattila I, et al. Among authors: merikallio e.Acta Anaesthesiol Scand. 1984 Apr;28(2):236-40. doi: 10.1111/j.1399-6576.1984.tb02050.x.Acta Anaesthesiol Scand. 1984.PMID: 6730888
Mattila S, Harjula A, Mattila I, Härkönen M, Merikallio E, Tala P.Mattila S, et al. Among authors: merikallio e.Scand J Clin Lab Invest. 1982 Dec;42(8):637-42.Scand J Clin Lab Invest. 1982.PMID: 7167731