[1] Univ Illinois, Sch Publ Hlth, 1603 West Taylor St, Chicago, IL 60612 USA
[2] Univ Illinois, Coll Med, 1853 West Polk St, Chicago, IL 60612 USA
[3] Univ Illinois, Div Endocrinol Diabet & Metab, 835 South Wolcott,Suite E625,M-C 640, Chicago, IL 60612 USA
[4] Univ Illinois, Chicago Ctr Hlth & Environm, Sch Publ Hlth, 1603 West Taylor St, Chicago, IL 60612 USA
[5] Jesse Brown Vet Affairs Med Ctr, Sect Endocrinol Diabet & Metab, 820 South Damen, Chicago, IL 60612 USA