RT Journal Article SR Electronic T1 Randomized trial comparing the spread of retrolaminar block with the combination of erector spinae block and retrolaminar block in soft embalmed Thiel cadavers JF Regional Anesthesia & Pain Medicine JO Reg Anesth Pain Med FD BMJ Publishing Group Ltd SP rapm-2022-103474 DO 10.1136/rapm-2022-103474 A1 Sartawi, Razan Yousef A1 McLeod, Graeme A1 Guntur Ramkumar, Prasad A1 Lamb, Clare YR 2022 UL http://rapm.bmj.com/content/early/2022/03/12/rapm-2022-103474.abstract AB