Certain sections of major medical journals are free 6 to12 months after publication of an article!
These include:
- New England Journal of Medicine
- JAMA: Journal of the American Medical Association
- BMJ: British Medical Journal
- Pediatrics
- Circulation
- and many more...
There is also a list of free medical journals with content in Spanish!
http://www.freemedicaljournals.com/fmj/ESP.HTM
- Acta Bioethica
- Acta Biológica Colombiana
- Acta Bioquímica Clínica Latinoamericana
et al