For the cross-table supine reverse Swimmers projection, what type of angle is added to desuperimpose the shoulders from the spine?

If a patient with a tension pneumothorax is lying supine, which of the following radiographic findings may be the only feature indicating the presence of this condition?

A. silhouette sign B. deep sulcus sign C. thumb sign D. air bronchograms

Vitamin A ester is an example of ____________________ lipids

Fill in the blank(s) with correct word