منابع مشابه
Oasis or Mirage ?
This paper will review the design of statistical studies, and comment on the difficulty of drawing causal inferences from non-experimental data. The most basic design is a comparison of rates for two groups of subjects. Subjects in one group get the treatment of interest; subjects in the other group are the controls. The difficulty is ensuring that the groups are similar, apart from the treatment.
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faltered and if ‘transdifferentiation’ occurs at all, it is felt not to be clinically significant. Despite this there is a growing body of evidence that supports the role of exogenously delivered MSCs attenuating many disease processes across many organs. In the lung this has focused around fibrotic and acute lung injury. A number of studies suggest their beneficial role is through interacting ...
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The Supreme Court’s use of dictionaries, virtually non-existent before 1987, has dramatically increased during the Rehnquist and Roberts Court eras to the point where as many as one-third of statutory decisions invoke dictionary definitions. The increase is linked to the rise of textualism and its intense focus on ordinary meaning. This Article explores the Court’s new dictionary culture in dep...
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In the desert Southwest, communities are slaking their thirst for knowledge with an outreach program that is overflowing with environmental health information. The Southwest Environmental Health Sciences Center (SWEHSC) at the University of Arizona in Tucson is one of 21 such centers that, along with 5 Marine and Freshwater Biomedical Sciences Centers and 1 Developmental Center, make up the 28 ...
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ژورنال
عنوان ژورنال: JNCI Journal of the National Cancer Institute
سال: 1988
ISSN: 0027-8874,1460-2105
DOI: 10.1093/jnci/80.1.5