Maybin, J Ultrasound guided supraclavicular nerve blockade: first technical description and the relevance for shoulder surgery under regional anaesthesia. [electronic resource] - Anaesthesia Nov 2011 - 1053-5 p. digital Publication Type: Letter; Comment ISSN: 1365-2044 Standard No.: 10.1111/j.1365-2044.2011.06907.x doi Subjects--Topical Terms: Anesthesia, Conduction--methodsHumansUltrasonography, Interventional--methods