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.
Apasheva LM, Kulakov VV, Nikol'skiĭ VG, Sharpatyĭ VA.Apasheva LM, et al.Izv Akad Nauk SSSR Biol. 1978 Mar-Apr;(2):305-8.Izv Akad Nauk SSSR Biol. 1978.PMID: 641261Russian.No abstract available.