The principal investigators and site locations were as follows: Dr. Francisco Candal, Northshore Research, Slidell, LA; Dr. Stephen Kreitzer, Tampa Medical Research Associates, Tampa, FL; Dr. Sherwin Gillman, Division of Allergy, Asthma & Immunology, Orange, CA; Dr. Catherine Van Kerckhove, Catherine Kolehmainen, Littleton, CO; Dr. Lawrence J. Sindel, Pulmonary Associates, P.C., Mobile, AL; Dr. Ken Cohen, New West Physicians Clinical Research, Golden, CO; Dr. Robert Nathan, Asthma and Allergy Associates, PC, Colorado Springs, CO; Dr. Kenneth Kim, West Coast Clinical Trials, Long Beach, CA; Dr. Paul Qaqundah, Pediatric Care Medical Group, Huntington Beach, CA; Dr. Stephen Tilles, A.S.T.H.M.A., Inc., Seattle, WA; Dr. Anthony DeMeo, Diablo Clinical Research, Inc., Walnut Creek, CA; Dr. Tonny Tanus, Lotus Medical Center of Allergy Asthma, Bakersfield, CA; Dr. Jacob Pinnas, Arizona Clinical Studies, Tucson, AZ; Dr. Amy Silverthorn, Arizona Pulmonary Specialists, Phoenix, AZ; Dr. Robert Kearl, Arizona Pulmonary Specialists, Phoenix, AZ; Dr. Henry Gong, USC Rancho Los Amigos Medical Center, Downey, CA; Dr. Cash Beechler, Arizona Pulmonary Specialists, LTD, Scottsdale, AZ; Dr. Leonard Caputo, The Asthma and Allergy Institute, Mobile, AL; Dr. Andrew Davidson, Allergy & Asthma Consultants, LLP, Charleston, SC; Dr. Marc Gottlieb, Diagnostic and Medical Clinic, PA, Mobile, AL; Dr. Pragnesh Patel, Allergy and Asthma Specialists, Altamonte Springs, FL; Dr. Andrew Martin, Asthma & Allergy Clinical Research Center, New Brunswick, NJ; Dr. Bernard Levine, Pulmonary Associates, PA, Phoenix, AZ; Dr. Michael Manning, Allergy and Immunology Association, Scottsdale, AZ; Dr. Nancy Ostrom, Asthma & Allergy Medical Group & Research Center, San Diego, CA; Dr. Sammy Campbell, VA Hospital, Pulmonary/1–111A, Tucson, AZ; Dr. Maurice Archuleta, Rocky Mountain Clinical Research, Golden, CO; Dr. Linda Ford; The Asthma and Allergy Center, PC, Papillion, NE; Dr. Thomas Kaelin, Low Country Lung and Critical Care, PA, Charleston, SC; Dr. Albert Finn, Radiant Research, Charleston-North Charleston, SC; Dr. Graham Scott, Charleston Pulmonary Associates, Charleston, SC; Dr. J. Allen Meadows; Drud Research and Analysis Corporation, Montgomery, AL; Dr. Jim Christensen, Nevada Access to Research & Education Society, Las Vegas, NV; Dr. Andrew Grant, UTMB, Galveston, TX; Dr. Warren Pleskow, Radiant Research, San Diego North, Encinitas, CA; Dr. John Lafata, Progressive Clinical Research, Vista, CA; Dr. David Laman, Consolidated Clinical Trials, Inc., Pittsburgh, PA; Dr. William Calhoun, UPMC, Pittsburgh, PA; Dr. Karl Sitz, Little Rock Allergy & Asthma Clinic, PA, Little Rock, AR; Dr. Manuel Lopez, Tulane University Health Sciences Center, New Orleans, LA; Dr. Maria Franco, Miami Children’s Hospital, Miami, FL; Dr. F. Charles Hiller, University of Arkansas for Medical Sciences, Little Rock, AR; Dr. Louis Kalish, Rx Research, Woodstock, GA; Dr. Dean Atkinson, Oklahoma Allergy & Asthma Clinic, Oklahoma City, OK; Dr. Kevin Kelly, Medical College of Wisconsin Asthma & Allergy Center, Milwaukee, WI; Dr. Edward Lisberg, Asthma & Allergy Center of Chicago, River Forest, IL; Dr. Mercedes Samson; B.P. Center Clinical Trials, Inc., Buena Park, CA; Dr. M. Ross Thomas, Midwest Allergy & Asthma Clinic Omaha, NE, Dr. James Baker; Allergy Associates Medical Center, Portland, OR; Dr. Keith Klatt, Radiant Research, Portland, OR; Dr. Richard Gower, Rockwood Clinic, PS, Spokane, WA; Dr. Paul Scheinberg, Atlanta Pulmonary Group, Atlanta, GA; Dr. David Graft, Park Nicollet Institute, Asthma & Allergy Research Center, Minneapolis, MN; Dr. James Cury, Shands Jacksonville Medical Center, Jacksonville, FL; Dr. Alan Aven, Arlington Heights, IL; Dr. Michael Rowe, Michigan Asthma & Allergy Center, Novi, MI; Dr. Peter Schochet, Presbyterian Hospital of Plano, Plano, TX; Dr. Jeffrey Leflein, Respiratory Medicine Research Institute, Ypsilanti, MI; Dr. Gregory Gottschlich, New Horizons Clinical Research, Cincinnati, OH; Dr. Jeff Craig, Sterling Research Group, LTD, Cincinnati, OH; Dr. Phillip Korenblat, The Clinical Research Center, LLc, St. Louis, MO; Dr. J. Allen Cooper, Birmingham VA Medical Center, Birmingham, AL; Dr. Robert Settipine, Allergy and Asthma Center, Providence, RI; Dr. Scott Yates, North Texas Medical Research, The Colony, TX; Dr. Brian Carlin, Consolidated Clinical Trials, Inc., Pittsburgh, PA; Dr. John Yarbrough, Allergy & Asthma Clinic of Northeast Georgia, Gainesville, GA; Dr. Robin Levy, Family Allergy and Asthma Center, Atlanta, GA; Dr. Randy S. Stoloff, Empire State Asthma & Allergy Treatment & Research Center, Plattsburgh, NY; Dr. Arthur DeGraff, Physician’s Research Center, Inc., Hartford, CT; Dr. Hugh Windom, Asthma & Allergy Research Center, Sarasota, FL; Dr. Carolyn Comer, Alabama Allergy & Asthma Center, Birmingham, AL; Dr. Jonathan Bernstein, Berstein Clinical Research Center, Cincinnati, OH; Dr. Paul Chervinsky, New England Research Center, North Dartmouth, MA; Dr. Suzanne Weakley, Clinical Trials, North Houston, Houston, TX; Dr. Lyndon Mansfield, El Paso Institute for Medical R&D, El Paso, TX; Dr. Jacques Caldwell, Radiant Research, Daytona Beach, FL; Dr. Michael Lawrence, Center for Clinical Research, Taunton, MA; Dr. Juan Sotomayer, Allergy and Asthma Diagnostic Office, Liverpool, NY; Dr. John J. Condemi, Allergy, Asthma & Immunology of Rochester Research Center, Rochester, NY; Dr. Howard Knapp, Deaconess Research Division, Billings, MT; Dr. David Valacer, New York Presbyterian-Cornell Weil, New York, NY; Dr. Janet Despot, Cardinal Respiratory, PC, Springfield, IL; Dr. Harmon Davis, IMG Clinical Research Center, LLC, Cheyenne, WY; Dr. A.M. Aminian, Allergy Institute Fresno, CA; Dr. Christopher Smith, Asthma and Allergy Associates, Ithaca, NY; Dr. Wilfred Beaucher, Certified Research Consultants, Chelmsford, MA; Dr. Azmi Farag, Mountain View Clinical Research, Denver, CO; Dr. Judith Kirstein, Jordan Valley Family Clinic, West Jordan, UT; Dr. Pardeep Rihal, Christus St. Catherines, Katy, TX; Dr. Thomas Ellis, Medical Specialty Clinic, Jackson, TN; Dr. Anthony Rooklin, Allergy Research Associates, Upland, PA; Dr. Alexander Shepherd, University of Texas Health Science Center at San Antonio, San Antonio, TX; Dr. Kim Jones, Louisianna State University Health Sciences Center, Shreveport, LA; Dr. Narinder Arora, Charlottsville Medical Research, Charlottsville, VA; Dr. Leslie Couch, University of Texas Health Center at Tyler, Tyler, TX; Dr. Jeffrey Wald, Kansas City Allergy and Asthma Associates, Overland Park, KS; Dr. Curtis Mello, JM Clinical Trials, Inc., Swansea, MA; Dr. Bruce Pfuetze, Multi-Specialty Clinical Research, College Park Family Care Center, Overland Park, KS; Dr. Matthew Beacom, Dr. Thomas A. McKnight, Fremont, NE; Dr. Harold Kaiser; Clinical Research Institute, Minneapolis, MN; Dr. John Cohn, Asthma Allergy & Pulmonary Associates, PC, Philadelphia, PA; Dr. Dennis Doherty, University of Kentucky Medical Center, Lexington, KY; Dr. Timothy Craig, Penn State Hershey Medical Center, Hershey, PA; Dr. Christopher Vanderneck, Meridian Clinical Research, Omaha, NE; Dr. Rebecca Gruchella, Utah Southwestern Medical School, Dallas, TX; Dr. Alan Reichman, Reichman & Associates, Sugarland, TX; Dr. Milan Slijvich; Allergy Clinic of Garland PA, Garland, TX; Dr. Michael Ruff, Pharmaceutical Research & Consulting, Inc, Dallas, TX; Dr. Mary Strek, University of Chicago, Chicago, IL; Dr. Peter Constantini, Atlantic Research Associates, Margate, NJ; Dr. Kathy Lampl, Asthma and Allergy Associates, Rockville, MD; Dr. Michael Spandorfer; Pulmonary & Critical Care Medicine, Charleston, SC; Dr. Robert Townley, Creighton University Center for Allergy, Asthma & Immunology, Omaha, NE; Dr. Rohit Patel, Pinnacle Research Group, LLC, Anniston, AL; Dr. Douglas Schumacher, Radiant Research Columbus, OH; Dr. Lawrence Gelber, Commonwealth Clinical Research Specialists, Richmond, VA; Dr. Donald Brandon, California Research Foundation, San Diego, CA; Dr. Robert Lapidus, Rocky Mountain Center for Clinical Research, Wheat Ridge, CO; Dr. David Schneider, Rx R&D, Metairie, LA; Dr. Bruce Prenner, Allergy Associates Medical Group, San Diego, CA; Dr. Steven Radwany, Akron Internists Research Foundation, Akron, OH; Dr. Robert Webb, Allergy and Asthma Research Associates, Kirkland, WA; Dr. Naomi Fieman, Mountain View Clinical Research, Denver, CO; Dr. Carlos deLaGarza, Unifour Medical Research, Hickory, NC; Dr. Meenashki Patel, Valley Medical Center, Centerville, OH; Dr. Edward Kent, Timber Lane Allergy and Asthma Research LLC, South Burlington, VT; Dr. Raul Laguarda, Charles River Medical Associates, Natick, MA; Dr. Eliot Dunsky, Philadelphia, PA; Dr. Irwin Spirn, Delaware Valley Clinical Research, Cherry Hill, NJ; Dr. Eugene Fletcher, University of Louisville, Louisville, KY; Dr. Imran Khawaja, Robin Ashford, Huntington, WV; Dr. Don McNeil; Optimed Research, LLC, Columbus, OH; Dr. Jonathan Matz, Atlantic Asthma and Allergy Center, Baltimore, MD; Dr. William Rees, PI-Coor Clinical Research, Burke, VA; Dr. Sooji Lee-Rugh, Millenium Clinical Research, LLC, Arlington, VA; Dr. Marcus Zervos, William Beaumont Hospital Royal Oak, MI; Dr. Patricia Buchanan, River Road Medical Group, Willamette Valley Clinical Studies, Eugene, OR; Dr. Tracy Green, Family Health Center, Sparks, NV; Dr. Jonathan Ilowite, Winthrop University Hospital Pulmonary Associates, Mineola, NY; Dr. John Behm, Northern Area Family Medicine, Pittsburgh, PA; Dr. Ronald H. Saff, Allergy & Asthma Diagnostic Treatment Center, Tallahassee, FL; Dr. David Brown, Mountain Allergy & Asthma, Asheville, NC; Dr. Jean-Claude Labissiere, Essex Medical Associates, Orange, NJ; Dr. Arnold Funkes, Alta Clinical Research, LLC, Tucson, AZ; Dr. William Massey, Pulmonary Associates of the Southeast, PC, Birmingham, AL; Dr. Frederick Kahn, Montana Health Research, Billings, MT; Dr. Alan Heller, San Jose Clinical Research, San Jose, CA; Dr. Richard Castaldo, Private Practice, Tonowanda, NY; Dr. Russell Leftwich, Nashville Asthma & Allergy, Nashville, TN; Dr. Selwyn Spangenthal, Charlotte Lung and Health, Charlotte, NC; Dr. Angelo Sparagna, Atlantic Research Associates, Margate, NJ; Dr. Jeffrey Glassheim, Fresno, CA; Dr. Michael Brown, Crescent Clinical Research, Inc., Pensacola, FL; Dr. Lauro Roberto, Children’s Hospital Central California, Madera, CA; Dr. David Gross; Ntouch Research, Washington, DC; Dr. Richard White, University of California Davis, General Medicine Investigative Clinic, Sacramento, CA; Dr. George Bensch, Bensch Clinical Research Associates; Stockton, CA; Dr. Richard Weiss, Medical Research Unlimited, Hialeah, FL; Dr. Matthew Hegewald, Bend Memorial Clinic, Bend, OR; Dr. Andres Redondo, CliniTrials, Miami, FL; Dr. David Hugh Frazer, Drug Research and Analysis Corporation, Montgomery, AL; Dr. Joel Porter; IHC Health Center, Layton, UT; Dr. Thomas M. Hyers, CAR.E. Clinical Research, St. Louis, MO; Dr. Jatin J. Kadakia, Access Clinical Trials, Inc., Clarksville, TN; Dr. Jon K. Van Valkenburg, Medford Medical Clinic, Medford, OR; Dr. Alan Nolasco, MediClinic, Houston, TX; Dr. Shull Lemire, Northwest Physicians Research Network, Inc., Missoula, MT; Dr. Ricardo Tan, California Allergy & Asthma Medical Group, Palmdale, CA; Dr. James McFeely, Berkeley Pulmonary Medical Group, Berkeley, CA; Dr. David G. Hill, Waterbury Pulmonary Associates, Waterbury, CT; Dr. Richard Mangi, Allergy, Arthritis and Infectious Disease Associates, Hamden, CT; Dr. Bobby Lanier; North Texas Institute for Clinical Trials; Fort Worth, TX; Dr. David Bouda, Heartland Clinical Research, Inc., Omaha, NE; Dr. John. Murray, ASAP Research, Nashville, TN; Dr. Bharat Latthe, North Belt East Medical Clinic, PA, Houston, TX; Dr. Reynold Karr, Physicians Pharmaceutical Study Services, Everett, WA; Dr. Constantine Saadeh, Amarillo Center for Clinical Research, Ltd.; Amarillo, TX; Dr. Kevin Schaffer, Allergy & Asthma Clinical Research Center, LLC, Lawrenceville, GA; Dr. Jonathan Corren, Allergy Research Foundation, Los Angeles, CA; Dr. Susheela Bala, Allergy & Asthma Clinic, San Bernardino, CA; Dr. Gregory Lux, St John’s Medical Research, Springfield, MO; Dr. Stephen Pollard, Family Asthma & Allergy Research Institute, Louisville, KY; Dr. Kajori Thusu, Universal Biopharma Research Inc., Dinuba, CA; Dr. Ashok Patel, Academy Allergy, Asthma & Immunology, Pueblo, CO; Dr. Alan Bakst, Medical Specialists of Palm Beaches, Inc., Boynton Beach, FL; Dr. David Cardona, Universal Biopharma Research Inc., Fresno, CA; Dr. Shams Iqbal, Asthma & Allergy Group, Riverside, CA; Dr. Jimmie Tarro, Allergy Asthma & Dermatology Research Center, LLC, Lake Oswego, OR; Dr. Eugene Bleecker, Cloverdale Research Facility, Winston Salem, NC; Dr. John Oppenheimer, Pulmonary & Allergy Associates, Springfield, NJ; Dr. John F. Pinto, Clinical Research Center of Nevada, Las Vegas, NV; Dr. June Hawkins, Asthma Allergy Center, Tigard, OR; Dr. Jan Westerman, Private Practice, Jasper, AL; Dr. A. Lynne Brannen, University Medical Associates, LLP, Augusta, GA; Dr. James Good, South Denver Pulmonary Associates, PC, Englewood, CO; Dr. Stephen H. Kimura, MED3000 Clinical Solutions Inc., Pensacola, FL; Dr. Pinkus Goldberg; Clinical Research Center of Indiana, Indianapolis, IN; Dr. Robert Gao, Advanced Practice Clinical Research, Las Vegas, NV; Dr. Vicente Chavarria, Lovelace Scientific Resources; Miami, FL; Dr. Rachakonda Prabhu, Redrock Research Center, Las Vegas, NV; Dr. Terence T. Hart, Muscle Shoals, AL; Dr. Robert Webb, Yakima Chest Clinic PC, Yakima, WA; Dr. Dennis K. Ledford, University of South Florida Asthma, Allergy, Immunology, Tampa, FL; Dr. Jay K. Udani, Pacific West Research Corporation, Northridge, CA; Dr. Gary A. Cohen, Allergy and Asthma Prevention and Treatment Center, San Diego, CA; Dr. Allen Segal, Allergy Associates Research, Dallas, TX; Dr. Phillip Korenblat; The Clinical Research Center, LLC, St. Louis, MO; Dr. Aftab Naz, Madera Family Medical Group, Madera, CA; Dr. Elizabeth Gallup, Radiant Research, Overland Park, KS; Dr. Leon Greos, Colorado Allergy & Asthma Centers, PC, Englewood, CO; Dr. David Pearlman, Colorado Allergy and Asthma Centers, P.C., Denver, CO; Dr. Thomas Littlejohn, Piedmont Medical Research Associates, Winston Salem, NC; Dr. Edward Peters; Radiant Research, Austin, TX; Dr. Steven Weinstein, Allergy and Asthma Specialists Medical Group and Research Center, Huntington Beach, CA; Dr. Edward LeDoux, Pulmonary Consultants, PLLC, Tacoma, WA; Dr. Edward Kent, Timber Lane Allergy & Asthma, South Burlington, VT; Dr. Grant Olson, Colorado Allergy & Asthma Centers, PC, Lakewood, CO; Dr. Nathan Schultz, Allergy & Asthma Medical Group, Walnut Creek, CA; Dr. Stephen C. Ulrich, Pharmacotherapy Research Associates, Inc., Zanesville, OH; Dr. Andrew Pedinoff, Princeton Center for Clinical Research, Princeton, NJ; Dr. Harold Nelson, National Jewish Medical and Research Center, Denver, CO; Dr. Robert Berkowitz, Rx Research, Woodstock, GA; Dr. Jonathan Bernstein, Bernstein Clinical Research Center, LLC, Cincinnati, OH; Dr. Anjuli Nayak and Dr. Nicholas Nayak, Sneeze, Wheeze & Itch Associates, LLC, Normal, IL; Dr. Linda Ford, The Asthma and Allergy Center, Papillion, NE; Dr. David Levin, VAMC, Oklahoma City, OK; and Dr. Michael Blumberg, VA Adult & Pediatric Allergy & Asthma, Richmond, VA.