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.
Zambrana García JL, Velasco Malagón MJ, Díez García F, Cruz Caparrós G, Martín Escalante MD, Adarraga Cansino MD; grupo para el estudio de la Actividad de Medicina Interna en Andalucía.Zambrana García JL, et al.Rev Clin Esp. 2005 Sep;205(9):413-7. doi: 10.1157/13079068.Rev Clin Esp. 2005.PMID: 16194474Spanish.