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Previous Volume 336:1610-1611 May 29, 1997 Number 22 Next

	Since this article has no abstract, we have provided an extract of the first 100 words of the full text and any section headings.

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To the Editor: Ely et al. (Dec. 19 issue)¹ advanced our understanding of the process of weaning patients from mechanical ventilation. How did the daily screening protocol influence decisions about weaning and extubation in the control group? The extent of the attending physicians' understanding of the study design and their knowledge of the random assignments should have been defined. Some awareness of the study would inevitably occur, given the oral and written communication between study personnel and attending physicians and the finite number (or number of groups) of intensivists, pulmonologists, and cardiologists. The lack of a positive communication (e.g., a . . . [Full Text of this Article]

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