Massachusetts General Hospital Pulmonary and Critical Care Unit, Boston, Massachusetts, United States
Brigham and Women's Hospital, Boston, Massachusetts, United States
Albert Einstein Medical Center, Philadelphia, Pennsylvania, United States
Pfizer Investigational Site, Roma, Italy
Pfizer Investigational Site, Belmont, Massachusetts, United States
Emory University Hospital, Atlanta, Georgia, United States
Fox Chase Cancer Center, Philadelphia, Pennsylvania, United States
Northwestern Medical Faculty Foundation, Chicago, Illinois, United States
Pfizer Investigational Site, Muenchen, Germany
Pfizer Investigational Site, Toerwang-Samerberg, Germany
Pfizer Investigational Site, Stockholm, Sweden
Pfizer Investigational Site, Manchester, United Kingdom
Pfizer Investigational Site, Tacoma, Washington, United States
Pfizer Investigational Site, Tianjin, China