Browse Items (6 total)

Study objectives: Black smokers have been reported to have higher serum cotinine levels than do white smokers, and have higher rates of most smoking-related diseases, despite smoking fewer cigarettes per day. Another striking racial difference is the…

A method of evaluating trend (positive or negative) in 2 x K ordered tables is suggested for cases in which the scores for the first (K-1) categories are known a priori but the score for the last category is not known. Such a category is termed as…

Background: The hands of health care workers (HCWs) serve as a major route for transmission of nosocomial infection. Although handwashing is known to reduce cross-transmission of infection, the influence of rings on the efficacy of handwashing and…

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