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Ok SY, Ryoo SH, Baek YH, Kim SH, Kim SI, Kim SC, Park W, Song D. Drip infusion method as a useful indicator for identification of the epidural space. Korean J Anesthesiol. 2009 Aug;57(2):181–4. doi: 10.4097/kjae.2009.57.2.181. PMID: 30625854. |