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Executive summary: American College of Chest Physicians Evidence-Based Clinical Practice Guidelines (8th Edition). Chest Hirsh, J., Guyatt, G., Albers, G. W., Harrington, R., Schünemann, H. J. 2008; 133 (6): 71S-109S
View details for DOI 10.1378/chest.08-0693
View details for PubMedID 18574259