1. Weill Cornell Medical College, Jewish Institute for Medical Research, New York, New York.
2. Maimonides Medical Center, Brooklyn, New York.
3. North Shore-Long Island Jewish Institute for Medical Research, New York, New York.
4. BioSeek Endocrine Clinics 5 East 57th Street, 16th Floor New York, NY 10022 E-mail: nkmaclaren@aol.com