In the beginning of a string of podcasts about sound in medicine, Bedside Rounds goes back to the beginning, with the invention of the stethoscope by Rene Laennec. How was the stethoscope invented? What are doctors listening for when they listen to their lungs? Who was Rene Laennec? Well, learn all the answers to these questions in Episode 9 of Bedside Rounds, Laennec's Cylinder!