| E-L | G-L | ||
---|---|---|---|---|
 | 12 patients | 12 patients | 12 patients | 12 patients |
Pretest evaluation | L4–5 | L3–4, L4–5 | L4–5 | L3–4, L4–5 |
Post-test evaluation | L3–4, L4–5 | L3–4, 4–5, and more cranial levels | L3–4, L4–5 | L3–4, 4–5, and more cranial levels |