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What was the margin in the AP direction when an
online
marker based correction protocol was used?
A. 3 mm
B. 4 mm
C. 5 mm
D. 8 mm
E. 10 mm
F. Larger than 10 mm
3 mm
4 mm
5 mm
8 mm
10 mm
Larger than 10 mm
3%
16%
5%
0%
8%
68%