Assertion: ultrasound | /r/HasAspect | known harmful effects
Facets:
Source sentences:
text: Ultrasound does not use ionizing radiation, has no known harmful effects, and provides a clear picture of soft tissues that don't show up well on x-ray images.
text: Ultrasound does not use ionizing radiation, has no known harmful effects, and provides images of soft tissues that don't show up on x-ray images.
text: Ultrasound does not use ionizing radiation and has no known harmful effects.