Are you a long-time RefWorks user? If so, your login screen and access URL may be the "Legacy" RefWorks (orange & black). You'll want to migrate your RefWorks library to the new system soon if you want to save those citations going forward. Visit the new RefWorks Guide (linked below) to learn about the new, modern interface and how to start fresh or migrate your existing account.
Below, you'll also find a link to the Importing Hints guide - for those databases like PubMed and Cochrane that don't have a direct export function.