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. 2018 Dec 27;13:28. doi: 10.1186/s13013-018-0174-y

Fig. 4.

Fig. 4

Receiver operating curves for utilizing pre-operative extension lumbar spine radiographs (a) and pre-operative supine sagittal MRI (b) as a predictor of sagittal balance correction (PI-LL mismatch ≤ 10o)