Answers are grounded in this paper and cite their sources.
News releases about new products and services will be published in a journal for wider visibility.
News releases about new products and services will be considered for publication in this section. There is no charge for these listings. Send descriptive release and glossy black and white photographs to RESPIRATORY CARE Journal, New Products and Services Dept, Box 29686, Dallas TX 75229.
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A 1990 study studied this question.
Synapse has enriched 5 closely related papers on similar clinical questions. Consider them for comparative context: