PubMed

PubMed comprises more than 25 million citations for biomedical literature from MEDLINE, life science journals, and online books. Citations may include links to full-text content from PubMed Central and publisher web sites.

Cochrane library

The Cochrane Library (ISSN 1465-1858) is a collection of six databases that contain different types of high-quality, independent evidence to inform healthcare decision-making, and a seventh database that provides information about Cochrane groups.

Research Gate

Our mission is to connect researchers and make it easy for them to share and access scientific output, knowledge, and expertise. On ResearchGate they find what they need to advance their research. (es decir, es una web donde los investigadores comparten de forma gratuita y altruista sus trabajos que han publicado en congresos y revistas para ser vistos por otros investigadores sin necesidad de pagar ni estar suscrito a ninguna revista científica)

Buscador Guiasalud

Buscador de preguntas clínicas en 10 sitios webs con preguntas en español en la web de guiasalud del Ministerio de Sanidad