C. Compagnone, “Paravertebral block for patients older than 80 years in one day surgery elective mastectomy”, Acta Biomed, vol. 84, no. 3, pp. 234–236, Jan. 2014, Accessed: Jul. 27, 2024. [Online]. Available: https://mattioli1885journals.com/index.php/actabiomedica/article/view/3000