Diagnostic Clinic of Houston, Houston, Texas, United States
Riverside Nephrology Physicians/Van Buren Dialysis center, Riverside, California, United States
North America Research Institute, San Dimas, California, United States
Providence Hospital, Southfield, Michigan, United States
Ohio Health Research Institute, Columbus, Ohio, United States
Cardiovascular Catheterization Labs at Fairfield, Fairfield, Ohio, United States