What is the Machine called that Shocks your heart or sends a to your Heart while you wait for 911 to arrive?

How many teeth on primary dentition

If the singular term ends in -us, the plural is usually formed by changing the ending to

The dietary guidelines for americans recommend (a) avoiding smoking. (b) engaging in aerobic exercise for 60 minutes at least five days a week. (c) making all of your grain choices whole grains. (d) increasing your intake of fruits and vegetables.