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Ultrasound given the all clear – for now
Email: Helen Gavaghan - Gaversx@aol.com News from The Scientist 2001, 2(1):20011220-04
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For as long as medicine has used ultrasound — beginning in the early 1950s — there have been questions about whether the technique, particularly when used on pregnant women, is entirely beneficial or might pose threats to health in some circumstances. The consensus for decades has been that it is safe — the high frequency sound waves have about as much energy as a torch beam — but should be constantly reviewed.
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