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.
Bastos AL, Marques DV, Filipe Da Silva J, Moura Nunes JB, Dias Correia A, Vigário JD, Terrinha AM.Bastos AL, et al.Z Naturforsch B. 1968 Jul;23(7):969-75. doi: 10.1515/znb-1968-0716.Z Naturforsch B. 1968.PMID: 4178917No abstract available.