Heart Center of the Rockies, Fort Collins, Colorado, United States
University of Texas Medical Branch, Galveston, Texas, United States
Advanced Clinical Research, West Jordan, Utah, United States
University of Puerto Rico School of Medicine, San Juan, Puerto Rico
Latin Clinical Trial Center, San Juan, Puerto Rico
National University Hospital, Singapore, Singapore
Nycomed Investigational Site, Bellevue, Washington, United States
Hospital Español de Mexico, Mexico City, Mexico
Nycomed Investigational Site, Mannheim, Germany