[1] Mayo Clin, Coll Med, Div Prevent & Occupat Med, Rochester, MN 55905 USA
[2] Mayo Clin, Coll Med, Qual Off, Rochester, MN 55905 USA
[3] Mayo Clin, Coll Med, Dept Family Med, Rochester, MN 55905 USA
[4] Winona State Univ, Masters Program Nursing, Winona, MN 55987 USA
[5] Mayo Clin, Coll Med, Div Cardiovasc Dis, Rochester, MN 55905 USA