Currently, there seems to be a problem linking at the ARTICLE level from Summon, PubMed, etc. to ScienceDirect. We are investigating.
If you don’t want to land at the JOURNAL level in ScienceDirect and then hunt for your article, you can go to ScienceDirect’s Advanced Search page and search for the article from there. Remember though, that as you are not coming from the Library you will not see our coverage dates ahead of time. It is possible you will find an article outside our access dates. If the article lacks a green box or a PDF icon, odds are we do not have access.
Sorry for the inconvenience.