Study Design. A retrospective clinical study.

研究设计：一个回顾性的临床研究。

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Study Design. A retrospective clinical and radiologic evaluation of patients with vertebral osteomyelitis treated via radical debridement and stabilization using titanium mesh cages.

研究设计：对经彻底清创应用钛（网）笼固定的椎体骨髓炎患者，进行回顾性的临床和放射学评估。

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In a prior retrospective study, her group demonstrated a poor correlation between clinical and ultrasound findings in ankle disease with juvenile idiopathic arthritis, she said.

她说，在先前的回顾性研究中，她的小组证明超声与临床检查在青少年特发性关节炎踝关节病变中相关性较差。

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For one, the groups noted the analysis is a retrospective study, not a prospective, randomized controlled clinical trial, which many regard as a gold standard for ferreting out safety concerns.

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