4Aunac S, Carlier M, Singelyn F, et al. The analgesic efficacy of bilateral combined superficial and deep cervical plexus block administered before thyroid surgery under general anesthesia. Anesth Analg, 2002, 95:746-750.
5Pandit JJ, Satya-Krishna R, Gration P. Superficial or deep cervical plexus block for carotid endarterectomy: a systematic review of complications. Br J Anaesth, 2007, 99 : 159-169.
6Patel AS, O'Donnell C, Parker MJ, et al. Diaphragm paralysis definitively diagnosed by ultrasonography and postural dependence of dynamic lung volumes after seven decades of dysfunction. Lung, 2007, 185 : 15-20.
7Kessler J, Schafhalter-Zoppoth I, Gray AT. An ultrasound study of the phrenic nerve in the posterior cervical triangle : implications for the interscalene brachial plexus block. Reg Anesth Pain Med, 2008, 33:545-550.
8Wosko J, Sawulski S, Dabrowski W, et al. Effects of cervical plexus block on lung ventilation. Anestezjol Intens Ter, 2009, 41:209-214.
9Kefalianakis F, Koeppel T, Geldner G, et al. Carotid-surgery in ultrasound-guided anesthesia of the regio colli lateralis. Anasthesiol Intensivmed Noffallmed Schmerzther, 2.1305, 40:576-581.
10Sandeman D J, Griffiths M J, Lennox AF. Ultrasound guided deep cervical plexus block. Anaesth Intensive Care, 2006, 34:240-244.
