Yield of Echocardiogram and Predictors of Positive Yield in Pediatric Patients: A Study in an Urban, Community-Based Outpatient Pediatric Cardiology Clinic.

Finally, echocardiograms ordered by a cardiologist were more likely to have a positive yield than those ordered by a primary care physician, although this did not reach statistical significance (9.3% vs 6.0%, respectively, p = .09).

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