At the moment on-campus access to PubMed and other NCBI resources is down. We're investigating what's happening and hopefully access will be back soon. In the meantime, if you need to get some articles from PubMed, you can try one of our other interfaces to MEDLINE (i.e., most of the content of PubMed):
Through the Web of Science interface: this interface lets you search MEDLINE like you would search Web of Science (it even lets you search both at once!). It works really well for importing citations into EndNote, and for citations that are in both MEDLINE and Web of Science, you can see how many times they have been cited, and by whom.
Through the OvidSP interface: this interface works like the interface we use for PsycINFO, and is popular at many other institutions.
Both of these interfaces use different search algorithms than PubMed, so the exact same search may get different results across the three interfaces. At the Levy Library we love PubMed for its Automatic Term Mapping feature, but these others have perks as well, especially when PubMed is down!