1. Division of Preventive Cardiology, Department of Cardiovascular Medicine, Mayo Clinic , 200 First Street SW, Rochester, MN 55905 , USA
2. Dan Abraham Healthy Living Center, Mayo Clinic , 200 First Street SW, Rochester, MN 55905 , USA
3. Division of Epidemiology, Department of Quantitative Health Sciences, Mayo Clinic, 200 First Street SW , Rochester, MN 55905 , USA