Sivakumar RK, Karmakar MK. Variable anterior spread of local anesthetic after erector spinae plane block (ESPB): time to turn the spotlight on the 'retro-SCTL space'. Reg Anesth Pain Med 2023 Feb 17:rapm-2023-104362. doi: 10.1136/rapm-2023-104362.
PMID: 36805496