Spyridon Fortis, Pedro M. Quibrera, Alejandro P. Comellas, Surya P. Bhatt, Donald P. Tashkin, Eric A. Hoffman, Gerard J. Criner, MeiLan K. Han, R. Graham Barr, Mehrdad Arjomandi, Mark B. Dransfield, Stephen P. Peters, Brett A. Dolezal, Victor Kim, Nirupama Putcha, Stephen I. Rennard, Robert Paine, Richard E. Kanner, Jeffrey L. Curtis, Russell P. Bowler, Fernando J. Martinez, Nadia N. Hansel, Jerry A. Krishnan, Prescott G. Woodruff, Igor Z. Barjaktarevic, David Couper, Wayne H. Anderson, Christopher B. Cooper, Subpopulations and Intermediate Outcome Measures in COPD Study Investigators, Neil E. Alexis, Wayne H. Anderson, Mehrdad Arjomandi, Igor Barjaktarevic, R. Graham Barr, Patricia Basta, Lori A. Bateman, Surya P. Bhatt, Eugene R. Bleecker, Richard C. Boucher, Russell P. Bowler, Stephanie A. Christenson, Alejandro P. Comellas, Christopher B. Cooper, David J. Couper, Gerard J. Criner, Ronald G. Crystal, Jeffrey L. Curtis, Claire M. Doerschuk, Mark T. Dransfield, Brad Drummond, Christine M. Freeman, Craig Galban, MeiLan K. Han, Nadia N. Hansel, Annette T. Hastie, Eric A. Hoffman, Yvonne Huang, Robert J. Kaner, Richard E. Kanner, Eric C. Kleerup, Jerry A. Krishnan, Lisa M. LaVange, Stephen C. Lazarus, Fernando J. Martinez, Deborah A. Meyers, Wendy C. Moore, John D. Newell, Robert Paine, Laura Paulin, Stephen P. Peters, Cheryl Pirozzi, Nirupama Putcha, Elizabeth C. Oelsner, Wanda K. O’Neal, Victor E. Ortega, Sanjeev Raman, Stephen I. Rennard, Donald P. Tashkin, J. Michael Wells, Robert A. Wise, Prescott G. Woodruff