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85

Achieving a Thicker Chest

A powerful chest is one of the most desirable elements of an overall fit body. It's the centerpiece of your physique, and well-shaped and toned muscles up front are important for that bare-chested day at the...

3 comments    hubchallenge chest pectorals
71

The Stethoscope

Before the development of the stethoscope, doctors placed their ears directly on the patient's body so the action of the heart and other organs of the chest can be heard and gauged. That was soon to change...

3 comments    doctor binaural stethoscope
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