Este es un artículo de acceso abierto distribuido bajo los términos de "Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License" (http://creativecommons.org/ licenses/by-nc-sa/4.0/), la cual permite copiar y redistribuir el material en cualquier medio o formato; mezclar, transformar y crear a partir del material, dando el crédito adecuado al propietario del trabajo original.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.