Abdelhamid, B. M., D. KHALED, M. A. Mansour, and M. M. Hassan,
"Comparison between the ultrasound-guided erector spinae block and the subcostal approach to the transversus abdominis plane block in obese patients undergoing sleeve gastrectomy: a randomized controlled trial",
Minerva Anestesiologica, vol. 86, issue 8, pp. 816-826, 2020.
] 