If you want to connect to full text no matter where you are online, you can install the LibKey browser extension. LibKey Nomad provides one-click article access to library subscriptions. The same "Download PDF" button shows across different platforms - from subscription library databases like JSTOR, to open databases like PubMed and Google Scholar, publisher journal pages, and even Wikipedia references.
Since it's connected to your browser, you don't have to go through the library website or be logged in to Brown's network to be linked back to our subscriptions. If we don't have the PDF, it will bring you to a page to request an interlibrary loan of the article.
It doesn't require a user account, does not cache user credentials, and does not sell or share user data.
Most databases search only the title, abstract, and some descriptors added by the database or authors. In many cases, especially when looking for detailed methods, a search of the full-text of an article is best. The following resources may not comprehensive in scope, but do allow full-text searching and may be a good complement to a search of PubMed or Biological Abstracts.