Breadcrumb All SHP Publications Journal Articles American Journal of Respiratory and Critical Care Medicine 174 An Official ATS Statement: Grading the Quality of Evidence and Strength of Recommendations in ATS Guidelines and Recommendations H Schunemann, R Jaeschke, D Cook, WF Bria, BF Fahy, AA El Solh, A Ernst, Michael K. Gould, KL Horan, JA Krishnan, CA Manthous, JR Maurer, WT McNicholas, AD Oxman, G Rubenfeld, GM Turino, G Guyatt, ATS Documents Development and Implementation Committee December 31, 2006 All SHP Publications