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INA Bearings (Schaeffler) - AKL.921 - DGBB/Self Align Ball Bearings/Access, 105mm ID, 155mm OD, 40mm W - RS
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Comparison of the operation safety and biomechanical stability of sacral alar-iliac vs. sacroiliac screws in the fixation of sacroiliac joint in simulated models of low bone density - ScienceDirect
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