Different types of registration are available for PAIS and CSA collections. Unregistered users have access to a limited amount of full-text articles in the Hot Topic section and links to journal lists.
There are different types of affiliation, institutional or individual, in order to access the full-text version of the material contained in the database
PAIS international offers reviewed lists of international journals, mostly linked to the website's source. The general CSA Illumina website gives free access to the Hot Topic section articles
A simple and essential site, with a good number of links to external web sources, some of them peer reviewed