title: Open access journals: open for rich, closed for poor.
authors.affiliation: Department of Physiology, College of Medicine, King Saud University, Riyadh, Saudi Arabia.
authors.forename: Sultan Ayoub
authors.initials: SA
authors.lastname: Meo
mesh_terms: D022126:Access to Information; D006801:Humans; D033181:Information Dissemination; D020407:Internet; D010506:Periodicals as Topic / Q000191:economics* / Q000706:statistics & numerical data; D011643:Publishing / Q000191:economics*