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تعداد نتایج: 2127672 فیلتر نتایج به سال:
Conventional measurement of blood pressure is fraught with many potential errors '1'. Automated blood pressure measuring devices remove observer bias and permit repeated blood pressure measurements at predetermined intervals, features which have obvious attractions in clinical practice and in hypertension and epidemiological research. However, such devices, which can be expensive, must be shown...
Arteriovenous malformations (AVMs) in the pediatric population are relatively rare but reportedly carry a higher rate of rupture than in adults. This could be due to the fact that most pediatric AVMs are only detected after rupture. We aimed to review the current literature regarding the natural history and the clinical outcome after multimodality AVM treatment in the pediatric population, as o...
Recent transformation algorithms for speeding up processing of nested SQL-like queries with aggregates are reviewed with respect to the correctness of aggregates over empty sets. It turns out that for a particular subset of such queries these algorithms fail to compute consistent answers. Unfortunately there seems to be no uniform way to do these transformations efficiently and correctly under ...
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