Deltoid MuscleShoulderStanozololMuscle, SkeletalShoulder JointArthroplastyLacerationsRotator CuffMusclesInjections, IntramuscularElectromyographyCadaverShoulder PainArmChest PainMuscle ProteinsMuscle, SmoothMuscle Fibers, SkeletalMuscle, Smooth, VascularNerve TransferMuscle ContractionMuscle DevelopmentBrachial Plexus