Compared to no stimulation (NS) what was the result of intraoperative BES applied to the spinal accessory nerve (SAN)  on In the intention-to-treat analysis, mean ΔCMS score?
 Mann-Whitney U-test demonstrated a significantly higher CMS score in the BES group at 12 months indicating significantly better preservation of shoulder function compared to the NS group (p = 0.007) (Fig. 3)