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.
González-Cámpora R, Muñoz-Arias G, Otal-Salaverri C, Jorda-Heras M, García-Alvarez E, Gomez-Pascual A, Garrido-Cintado A, Hevia-Vázquez A, Sánchez-Gallego F, Galera-Davidson H.González-Cámpora R, et al.Acta Cytol. 1992 Nov-Dec;36(6):905-17.Acta Cytol. 1992.PMID: 1449029