1. Lipid Research Clinic, The Methodist Hospital, Houston, Texas, USA
2. Metabolic and Atherosclerosis Research Center, Cincinnati, Ohio, USA
3. Johns Hopkins University Lipid Clinic, Baltimore, Maryland, USA
4. Cardiology Consultants, Heart Health Institute, Calgary, Alberta, Canada
5. Ranier Clinical Research Center, Renton, Washington, USA
6. Radiant Research Kansas City, Kansas Foundation for Clinical Pharmacology, Kansas City, Kansas, USA
7. Bayer Corporation Pharmaceutical Division, West Haven, Connecticut, USA