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1 janv. 1952 - New event

Description:

Swedish cardiologist Inge Edler and German physicist Carl Hellmuth Hertz launch the field of echocardiography, by adapting for human use a sonar device (that was used for detecting submarines in World War II) and using it to record echoes from the walls of a human heart. American cardiologist Paul Zoll develops the first external cardiac pacemaker.

Ajouté au bande de temps:

myocardial infarction treatment & diagnostic evolution over the past 70 years

By파티마
11 nov. 2019
0
0
240

Date:

1 janv. 1952
Maintenaint
~ Il y a 72 ans
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