New as of May 2019, Browzine, a journal table of contents browser for UTHSC subscribed e-journals. Sometime in 2020, you will be able to follow any e-journal, regardless of subscription, then if needed request ILL if full-text not available.
Same vendor makes DOI linking technology now available in PubMed and Discovery Search, see example and description at: https://thirdiron.com/libkey-link/
Try it in UTHSC's PubMed: https://libguides.uthsc.edu/pubmed
Existing E-Journal Finder, available at: https://libguides.uthsc.edu/ef