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Doctor With Stethoscope
Photograph by Jodi Cobb
Using well-trained listening skills, Charles Smith, an oncologist at Rappahannock General Hospital in Kilmarnock, Virginia, uses a stethoscope to hear the sounds in a cancer patient's chest. The highly sensitive—and versatile—instrument allows doctors to detect normal and abnormal sounds in such organs and vessels as the heart, lungs, arteries, and intestines.