Multiple choice

The electro cardiograph was invented by

  1. William Einthoven

  2. Lawler Mark

  3. Steve Lawrence

  4. Manu Karl

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A Correct answer
Explanation

William Einthoven invented the electrocardiograph (ECG) in the early 1900s and received the Nobel Prize in Physiology or Medicine in 1924 for this invention. The ECG records the electrical activity of the heart and is used to diagnose heart conditions.

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