[Ultrasound-guided interscalene block: Influence of anatomic variations in clinical practice].
Gutton
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Service d'anesthésie-réanimation, hôpital la Conception, CHU de Marseille, 147, boulevard Baille, 13385 Marseille cedex 5, France. christophe.gutton@ap-hm.fr
Choquet
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Antonini
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F
Grossi
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P