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B
Laennec
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C
Halls
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D
Chardack.
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Solution
The correct option is A Basch. The first clinically applicable sphygmomanometer was invented in 1881 by Austrian physician Karl Samuel Ritter von Basch.
Willem Einthoven (21 May 1860 – 29 September 1927) was a Dutch physician and physiologist. He invented the first practical electrocardiogram (ECG or EKG) in 1895 and received the Nobel Prize in Physiology or Medicine in 1924 for it.