Healia’s PubMed search (currently in beta) might be one of the best interfaces available for clinicians who don’t have the search skills to effectively search PubMed through its native interface.
Some notable features:
Automatic “AND”
By default, Healia inserts a boolean “AND” between all search terms (as Google does). While the expert searcher might find this unpleasantly limiting, it is a familiar behavior for many clinical searchers who view Google as their ideal, preferred search interface.