Stethoscope To Be Replaced By Ultrasound?

Stethoscope On Way Out?  Not So Fast by Mary Bowerman.  USATODAY.  January 24, 2014.

(1)  Ultrasound uses _________________ to create an image of a part of the body.

(2)  The cheapest ultrasounds cost ________________.

(3)  Replacing stethoscopes with ultrasound could lead to an increase in _______________

(4)