Assertion: stethoscope's chest piece | /r/HasProperty | a pair of earpieces
Facets:
Source sentences:
text: Since its earliest appearance in 1816 as an impromptu paper cone rolled by Dr. René Laennec, partly to protect the modesty of his female patients but also to make it possible to listen to the heart sounds of an obese woman, designs for stethoscopes have come to the familiar consensus configuration: a chest piece, a pair of earpieces, and a tube or tubes connecting them.