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FIG 4. Examples of LSA configurations. Arrows indicate the origins of LSAs.

A and B, Posterior (A) and anterior (B) images of MDS/LPS configuration (n = 27, 15%).

C and D, Anterior (C) and posterior (D) images of MPS/LPS configuration (n = 10, 5%).

E and F, Posterior (E) and anterior (F) images of MDS/MPS configuration (n = 2, 1%).