In digital radiography the number of different shades of gray that can be stored in memory and displayed on a computer monitor is termed

The ________ lesion is considered to be chronic gingivitis

Fill in the blank(s) with correct word

The indications for using ____ include severe pulmonary disease that is complicated by air leaks, such as pulmonary interstitial emphysema (PIE), pulmonary hypoplasia, restrictive lung disease, and persistent pulmonary hypertension.

A. PRVC B. HFOV C. MV D. HFJV