Brachial PlexusNerve BlockLumbosacral PlexusBrachial Plexus NeuropathiesUpper ExtremityBrachial Plexus NeuritisBirth InjuriesChoroid PlexusParalysis, ObstetricArmBones of Upper ExtremityMusculocutaneous NerveNerve TransferLower ExtremityCervical PlexusThoracic Outlet SyndromeShoulder JointParalysisSpinal Nerve RootsShoulderPeripheral NervesMyenteric PlexusAnesthetics, LocalArm InjuriesMedian NerveMepivacaineExtremitiesIntercostal NervesUpper Extremity Deep Vein ThrombosisUlnar NerveThoracic NervesSciatic NerveParesisButorphanolPeripheral Nervous System NeoplasmsClavicleContractureSubmucous PlexusScapulaNerve RegenerationPeripheral Nerve InjuriesMeningoceleElbow JointRadial NerveSubclavian VeinNerve Fibers