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This article discusses a cadaveric study comparing different ultrasound-guided approaches to brachial plexus blocks. The study evaluates needle visibility, anatomical structures, and local anesthetic diffusion. The results indicate that all approaches were effective, with the out-of-plane approach performing the best. The subclavian approach is highlighted as a new technique that improves visualization and reduces complications. However, the study's limitations include the use of cadavers and subjective evaluations. Authored by Maria Perez Herrero, Ece Altinpulluk, Mario Perez, Carlos Zamorano, Luis Vilches, and Felice Galluccio, this report provides a comprehensive analysis of the topic, offering diverse perspectives and culturally sensitive information. It is a valuable resource for library patrons conducting research on this subject. [Extracted from the article]