[1] Oregon Hlth & Sci Univ, Dept Biomed Engn, 3303 SW Bond Ave, Portland, OR 97239 USA
[2] Oregon Hlth & Sci Univ, Dept Med, Harold Schnitzer Diabet Hlth Ctr, Div Endocrinol, Portland, OR 97201 USA
[3] Oregon Hlth & Sci Univ, Sch Nursing, Human Performance Lab, Portland, OR 97201 USA