Studies hae shown that angioplasty and stenting can sae lies when used in heart attacks.
许多研究已经证实，对突发心梗，血管成形术和支架植入可以挽救病人生命。
Numerous studies hae shown the increased strength of constructs using screws as part of segmental spinal instrumentation.
大量研究表明，采用螺钉作为节段性脊柱内固定物一部分，将提供更强的固定作用。
Numerous studies hae shown the increased strength of constructs using screws as part of segmental spinal instrumentation.
大量研究表明，采用螺钉作为节段性脊柱内固定物一部分，将提供更强的固定作用。
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