Pfizer Investigational Site, New Haven, Connecticut, United States
Providence Clinical Research, Burbank, California, United States
LA Gay and Lesbian Center, Los Angeles, California, United States
The McGregor Clinic, Fort Myers, Florida, United States
Pfizer Investigational Site, London, United Kingdom
Pfizer Investigational Site, London, United Kingdom
GSK Investigational Site, Madison, Wisconsin, United States
Pfizer Investigational Site, Montreal, Quebec, Canada
Pfizer Investigational Site, São Paulo, SP, Brazil
GSK Investigational Site, London, United Kingdom
GSK Investigational Site, London, United Kingdom