J&S Studies, Bryan, Texas, United States
Unidad de Investigación en Salud (UIS), Chihuahua, Mexico
Hospital Universitario Dr. José Eleuterio González, Monterrey, Mexico
Instituto Dermatologico Jalisciense, Guadalajara, Mexico
The Education and Research Foundation, Inc., Lynchburg, Virginia, United States
Academic Dermatology Associates, Albuquerque, New Mexico, United States
University of Alabama at Birmingham, Birmingham, Alabama, United States
DermResearch, Inc., Austin, Texas, United States
J&S Studies, Bryan, Texas, United States
Pfizer Investigational Site, Quebec, Canada
Pfizer Investigational Site, Sikasso, West Africa, Mali
LAC-USC Medical Center, Los Angeles, California, United States
Ronald Regan UCLA Medical Center, Los Angeles, California, United States
USC Norris Cancer Hospital and Clinics, Los Angeles, California, United States
NewLab Clinical Research Inc., St. John's, Newfoundland and Labrador, Canada
Central Dermatology, PC, Saint Louis, Missouri, United States
Dermatology Consulting Services, High Point, North Carolina, United States