An AP axial sacral iliac joint projection with accurate positioning demonstrates the
1. median sacral crest and symphysis pubis in alignment.
2. sacroiliac joints without foreshortening.
3. symphysis pubis superimposed over the inferior sacral segments.
4. second sacral segment at the center of the image.
a. 1 and 2 only
b. 3 and 4 only
c. 1, 2, and 4
d. 1, 2, 3, and 4
D
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A person with type A blood has ________
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