[1] Loma Linda Univ, Dept Internal Med, Loma Linda, CA 92354 USA
[2] Stanford Med Ctr, Div Oncol, Stanford, CA USA
[3] Loma Linda Univ, Dept Pathol & Human Anat, Loma Linda, CA 92354 USA
[4] Loma Linda Univ, Dept Surg, Loma Linda, CA 92354 USA
[5] Loma Linda Univ, Div Med Oncol & Hematol, Dept Internal Med, 11175 Campus St,CSP 11015, Loma Linda, CA 92354 USA