Microcalcifications, both breasts, diagnosed on screening mammogram:

Tissue damage caused by low-velocity injuries is usually:

a. not very deep. b. not life-threatening. c. limited to the path of the object. d. known to occur to avalanche victims.

Which of the following indicates a passed coin test?

a. No image of a coin b. A faint image of the coin c. An undistorted image of the coin d. A dark image of the coin