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Competition between radiologists and nonradiologists for the performance and billing of radiologic imaging examinations is, perhaps, most pervasive in the field of diagnostic sonography [1-3]. The purpose of this article is to help radiologists understand and deal with turf battles and the self-referral of clinicians and to describe marketing analyses and strategy that can be useful when attempting to decrease competition and increase referrals.

Sonography by the radiologist: self-referral, turf battles, and marketing.