1 Division of Cardiovascular Medicine, Allegheny Health Network, Pittsburgh, Penn. Electronic address: [email protected].
2 Warren Clinic Endocrinology, 6160 South Yale Ave, Tulsa, Okla.
3 Utah Lipid Center, Salt Lake City, Utah.
4 Divisions of Reproductive Endocrinology and Biostatistics and Clinical Epidemiology, University of Oklahoma Health Sciences Center, Oklahoma City, Okla.