Although clinical studies have demonstrated the diagnostic value of point-of-care ultrasound, much broader training and assessment of benefits must be undertaken before compact ultrasound can become as standard as the stethoscope in physical exams, according to an editorial in the New England Journal of Medicine. To replace stethoscopes, devices must become smaller and more ergonomic, and physicians must be trained in their use, write physicians Scott Solomon and Fidencio Saldana of Brigham and Women's Hospital and Harvard Medical School.

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