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The Association of Pipe and Cigar Use With Cotinine Levels, Lung Function, and Airflow Obstruction: A Cross-sectional Study
Josanna Rodriguez, MD; Rui Jiang, MD, DrPH; W. Craig Johnson, MS; Barbara A. MacKenzie; Lewis J. Smith, MD; R. Graham Barr, MD, DrPH
Annals of Internal Medicine 2010;152:201-210.
doi:10.7326/0003-4819-152-4-201002160-00004
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