Spine
-
Retrospective review. ⋯ 3.
-
A retrospective study. ⋯ 4.
-
Case report. ⋯ 5.
-
Reliability/external validation study. ⋯ 3.
Retrospective review. ⋯ 3.
A retrospective study. ⋯ 4.
Case report. ⋯ 5.
Reliability/external validation study. ⋯ 3.