This is a "connection" page, showing publications co-authored by David Levin and Sanford Barth.
Shen X, Showalter TN, Mishra MV, Barth S, Rao V, Levin D, Parker L. Radiation oncology services in the modern era: evolving patterns of usage and payments in the office setting for medicare patients from 2000 to 2010. J Oncol Pract. 2014 Jul; 10(4):e201-7.
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.