Picture No | 10106300 |
Date | 1881 |
Description | SPHYGMOGRAPH/1881 |
Details |
Two types of sphygmograph being used on a patient to measure heart beat and pulse
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Source | Illustration by A. Demarle in Rengade's 'La Vie Normale et le Sante', page 297 |
Credit | Mary Evans Picture Library |
Restrictions |
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