Rivera Diaz, Roberto Carlo, Mario Andrés Arcila Lotero, and Johana Giraldo Giraldo. 2013. “Ultrasound-Guided Tricompartmental Blockade of the Shoulder”. Colombian Journal of Anesthesiology 41 (4):245-49. https://www.revcolanest.com.co/index.php/rca/article/view/636.