I was going to review Twease today, but I realized that David already did a great job with it, and that one of its creators, Fabien Campagne, left additional notes in the comments section that make for a complete review of what it does and how it works.
What neither of them touched on, though, was how beautifully designed it is. Go take a look. Meant as a compliment, I’d call it the “targetization” of Medline!
Also, I think it has one of the most straight forward, easy to use and understand tutorials I’ve seen.
And while I’m on tutorials I’d recommend, check out this Ovid Medline one from Duke.