In the article titled “Advances of Techniques in Deep Regional Blocks” [1], Table 1 was missing. Accordingly, the table is shown below, and its in-text citation is added as follows:

Table 1 
Qualitative analysis of injection pressure for the half-the-air setting.

Our preliminary qualitative analysis demonstrated that, by using the pressure management system of Injectomat Agilia® pump (Fresenius Vial, Brezins, France) as an in-line manometer between the needle (the tip inserted 3 cm into the pork model) and the low-dead space extension tube, pushing pressure generated by the act of half-the-air was below 15 psi during injection (experiment was run in triplicate, and occlusion alarm did not occur after the flow had commenced in response to half-the-air pressure exerted in the 20 mL local anesthetic syringe with the syringe pump set to an infusion rate of 0.1 ml/h and a pressure limit of 750 mmHg) (Table 1).

Acknowledgments

The work reported in this corrigendum was supported by a grant from Hualien Armed Forces General Hospital. Ko-Huan Lin (Division of Psychiatry, Hualien Armed Forces General Hospital, Hualien, Taiwan) and Jui-An Lin contributed equally to this corrigendum.