1. Walter A Rocca, Division of Epidemiology, Department of Health Sciences Research, Mayo Clinic, 200 First Street SW, Rochester, MN 55905, USA, Tel.: +1 507 284 3568, Fax: +1 507 284 1516,
2. Lynne T Shuster, Department of Internal Medicine, Women's Health Clinic, Mayo Clinic, 200 First Street SW, Rochester, MN 55905, USA, Tel.: +1 507 538 6830, Fax: +1 507 266 3988,
3. Brandon R Grossardt, Division of Biomedical Statistics & Informatics, Department of Health Sciences Research, Mayo Clinic, 200 First Street SW, Rochester, MN 55905, USA, Tel.: +1 507 284 5007, Fax: +1 507 284 9542,
4. Demetrius M Maraganore, Department of Neurology, Mayo Clinic, 200 First Street SW, Rochester, MN 55905, USA, Tel.: +1 507 284 3219, Fax: +1 507 284 3665,
5. Bobbie S Gostout, Division of Gynecologic Surgery, Department of Obstetrics & Gynecology, Mayo Clinic, 200 First Street SW, Rochester, MN 55905, USA, Tel.: +1 507 266 8701, Fax: +1 507 266 9300,
6. Yonas E Geda, Department of Psychiatry & Psychology, Mayo Clinic, 200 First Street SW, Rochester, MN 55905, USA, Tel.: +1 507 284 3789, Fax: +1 507 284 4158,
7. L Joseph Melton III, Division of Epidemiology, Department of Health Sciences Research, Mayo Clinic, 200 First Street SW, Rochester, MN, USA, Tel.: +1 507 284 5545, Fax: +1 507 284 1516,