Increasing the efficiency of medical research article searching for the public and experts by "shepardizing": a lesson from legal research databases

[...]legal information has a hierarchy, which is reflected in legal research databases. [...]despite the fact that experts update their knowledge regularly, no one can keep up with research in every field. [...]searching medical research information is taxing when experts explore a new topic area because there is no clear indication of which research articles represent the best information on any given topic.