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the past ten years, advances in computer power have created opportunities for voice input and output. Many major corporations, including Digital, provide database access through the telephone. The advent of Digital's Alpha processor has changed the economics of speech synthesis. Instead of an expensive , dedicated circuit card that supports only a single(More)
Right atrial (RA) size was determined with two-dimensional echocardiography using the apical four-chamber view in 45 adult patients with various echocardiographic criteria for RA enlargement and in 25 normal controls. RA size varied from 11.4-24.0 cm2 (mean 16.1 cm2) in controls. RA enlargement (greater than or equal to 25 cm2) was found in only two of 11(More)
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