Many citations in PubMed contain links to the full-text of articles through a free archive of life science journals called PubMed Central and others are free from the publisher.
Use Journals A-Z to see if a specific journal can be found in Full-text in one the databases Valencia College subscribes to like Medline.
Some PubMed citations may even contain links to the full text through the journal's publisher.
Some of the links will require that you have a subscription to the journal or may make the article available by pay-per-view. Remember to always double-check Journals A-Z to see if you already have access to the article through the Valencia databases.