This is a "connection" page, showing publications co-authored by David Friedman and David Levin.
Friedman DP, Levin DC, Rao VM. Trends in the utilization of CT angiography and MR angiography of the head and neck in the Medicare population. J Am Coll Radiol. 2010 Nov; 7(11):854-8.
The connection strength for concepts is the sum of the scores for each matching publication.
Publication scores are based on many factors, including how long ago they were written and whether the person is a first or senior author.