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This is how doctors used to listen to heart and lung sound before stethoscope was invented.

ProsperProsper Posts: 1,432
edited March 2016 in Celebrities | Gossips
The picture below shows how doctors used to hear lung and heart sound before a french doctor named Rene Laennec invented the first stethoscope in 1816. It was gathered that doctors over centuries never forgave Lennac for his invention.
beofe-stethoscope

Picture of Rene Laennec stethoscope in 1816.
Stethoscope

Picture of today modern stethoscope used by most health professionals.
modern-stethoscope

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Comments

  • konzavetifkonzavetif Posts: 37
    Someone humorously said that d inventor was hated by his colleagues bcuz they couldn't carry out their perverted activities.

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