The study used data about 9,395 women 65 and older, most of them white, who participated in a multicenter study of osteoporotic fractures.
研究分析了9395个65岁或年龄更大的女性的调查数据，他们中的大多数是白人，他们参与了骨质疏松性骨折的多中心研究。
Study Design. A prospective, randomized, multicenter study of surgical treatment of cervical disc disease.
研究设计：对颈间盘疾病手术方法的前瞻性、随机、多中心研究。
MATERIALS and METHODS: This was a randomized, double-blind, placebo controlled, parallel group, multicenter study.
材料和方法：这是一项随机、对照、双盲、平行分组、多中心的研究。
This study was a secondary analysis of the Alpha Omega Trial, a multicenter study involving 32 hospitals in the Netherlands.
这项研究是阿尔法欧米茄试验的二次分析，是包括荷兰的32家医院的多中心研究。
Considering the limited number of patients in this study, our results need, however, to be validated on a larger number of patients, probably in a multicenter study.
考虑到在这项研究中病例数量有限，我们的结果可能需要多中心研究中更大数目的病人来验证。
Considering the limited number of patients in this study, our results need, however, to be validated on a larger number of patients, probably in a multicenter study.
考虑到在这项研究中病例数量有限，我们的结果可能需要多中心研究中更大数目的病人来验证。
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